NASA Space Alerts engagement report
@NASASpaceAlerts - 1.2M followers on X
Measured over 5 original posts from a 30-day window, last computed on October 25, 2026.
Engagement
Early reading. We have captured 5 original posts for this account, below the 8 we require before treating a median as settled. The numbers above describe what we have seen so far, not a finished profile of the account.
A typical post picks up 499 interactions against 1.2M followers, an engagement rate of 0.042%. Posts are seen about 28K times each, and 1.78% of those impressions turn into an interaction. That is about 2.36% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 0.2 posts a day over the last 30 days, though only 20% of days saw any activity at all. Most posts go out around 16:00 UTC, and Sunday is the busiest day of the week. Of the 5 posts sampled, 80% carry an image or video and 80% link out. The account's strongest tracked post pulled 9.1K interactions, about 18x its own typical post. Recurring topics include #sunday, #meteorsighting. Only 5 original posts have been captured so far, fewer than the 8 posts we want behind a median before treating it as settled. Read the figures above as an early measurement of this account, not as a finished profile of it.
Measured over 5 original posts from a 30-day window, last computed on October 25, 2026. Recurring tags: #sunday, #meteorsighting.
Where this sits in the catalog
At 0.042%, NASA Space Alerts sits above the 25th percentile of the 204,424 accounts in this comparison. That places it in the below the median band, which runs 0.024% to 0.143%.
Show the percentile table
| Percentile | Engagement rate |
|---|---|
| 10th percentile | 0.004% |
| 25th percentile | 0.024% |
| 50th percentile | 0.143% |
| 75th percentile | 0.677% |
| 90th percentile | 2.55% |
| 99th percentile | 82.4% |
This ruler is the whole measured catalog, not a size-matched group: it shows where the raw rate falls across every account we can measure, all of which are large. For a like-for-like comparison, read the size-band percentile above instead. See how the bands are built
Posting timing
This account posts most often around 16:00 UTC, and Sunday is its busiest day of the week. The bars below are the catalog-wide pattern, with this account's own busiest slot marked. They do not show how this account performs at each hour: we keep one aggregate per account, not one per hour, so that measurement does not exist in our data.
Show engagement by hour posted, utc as a table
| Hour (UTC) | Vs author median | Posts |
|---|---|---|
| 00:00 UTC | -1% | 89K |
| 01:00 UTC | -2% | 90K |
| 02:00 UTC | -3% | 88K |
| 03:00 UTC | -4% | 94K |
| 04:00 UTC | -5% | 76K |
| 05:00 UTC | -4% | 75K |
| 06:00 UTC | -5% | 86K |
| 07:00 UTC | -5% | 93K |
| 08:00 UTC | -4% | 108K |
| 09:00 UTC | -4% | 124K |
| 10:00 UTC | -3% | 129K |
| 11:00 UTC | -3% | 141K |
| 12:00 UTC | -3% | 154K |
| 13:00 UTC | -3% | 167K |
| 14:00 UTC | -4% | 173K |
| 15:00 UTC | -2% | 176K |
| 16:00 UTC | -3% | 171K |
| 17:00 UTC | -3% | 159K |
| 18:00 UTC | -2% | 149K |
| 19:00 UTC | -2% | 141K |
| 20:00 UTC | -1% | 131K |
| 21:00 UTC | 0% | 116K |
| 22:00 UTC | -2% | 100K |
| 23:00 UTC | -1% | 90K |
Show engagement by day of week as a table
| Day | Vs author median | Posts |
|---|---|---|
| Sunday | +5% | 393K |
| Monday | +1% | 483K |
| Tuesday | -2% | 520K |
| Wednesday | -3% | 472K |
| Thursday | -2% | 430K |
| Friday | -3% | 447K |
| Saturday | +2% | 393K |
Formats this account uses
Its own posting mix on the left, and what each of those formats does across every account we track on the right. Only formats where the effect clears our publish test appear here, so an empty row is a format we could not measure rather than one that does nothing.
| Format | This account | Catalog effect | 95% interval | Accounts behind it |
|---|---|---|---|---|
| Image or video | 80% of posts | +111% | +108% to +115% | 34K |
| Outbound link | 80% of posts | -41% | -42% to -40% | 32K |
| Typical length | - | +15% | +14% to +16% | 32K |
- 80% of this account's sampled posts carry an image or video. Across the catalog, posts with an image or video run 111% above the same accounts' other posts.
- 80% of its posts carry a link off X. Across the catalog, posts with an outbound link run 41% below the same accounts' other posts, so a large share of this account's output sits in the weakest bucket we measure.
- Its average post runs 680 characters, which falls in the over 280 characters band. Across the catalog, posts over 280 characters run 15% above the same accounts' other posts.
These are catalog-wide differences applied to this account's own posting mix, not a measurement of how each format performs for this account specifically. We keep one median per account, not one per format per account, so the second thing is not something this data can tell you.
Best tweets
- Sep 6, 202618x their median
A small natural object 1.5-5 feet (0.5-1.5m) is predicted to impact Earth’s atmosphere just northwest of Australia and safely disintegrate today, Sept. 6, 12:14 p.m. EDT. While not a hazard, scenarios like this provide an invaluable test of our planetary defense capabilities to monitor for larger objects and predict impact threats.
- Mar 22, 202611x their median
#MeteorSighting: Eyewitnesses in Texas observed a bright fireball today, March 21, at 4:40 p.m. CDT. Current data indicates that the meteor became visible at 49 miles above Stagecoach, northwest of Houston. It moved southeast at 35,000 mph, breaking apart 29 miles above Bammel, just west of Cypress Station. The fragmentation of the meteor - which weighed about a ton with a diameter of 3 feet - created a pressure wave that caused booms heard by some in the area. Doppler weather radar also showed meteorites produced between Willowbrook and Northgate Crossing. 🔗 https://t.co/LI4tTZhPdo Eyewitness accounts supplied by the American Meteor Society
- May 30, 202611x their median
#MeteorSighting: Eyewitnesses in New England and @NOAA’s GOES-19 satellite reported a bright fireball on Saturday, May 30, at 2:06 p.m EDT accompanied by a loud noise. The meteor appears to have fragmented at an altitude of 40 miles over northeast MA and southeast NH. The energy released at breakup is estimated to be equivalent to about 300 tons of TNT, which accounts for the loud noise. Eyewitness accounts supplied by the American Meteor Society.
- Mar 30, 20269.1x their median
LIVE: NASA leaders discuss our upcoming @NASAArtemis II mission around the Moon. Two days remain until the first launch opportunity on April 1. https://t.co/i9Dwp0K0K2
- Mar 23, 20264.8x their median
#MeteorSighting: A fireball was observed by witnesses in the western U.S. on Sunday night, March 22. The meteor was first spotted above the California town of Chowchilla. It traveled south at 35,000 mph before disintegrating above Calflax. This fireball does not appear to be related to other recent bright meteors. 🔗 https://t.co/xaKxKVltVA Eyewitness accounts supplied by the American Meteor Society
- Mar 17, 20266.4x their median
#MeteorSighting: A very bright daylight fireball was observed by witnesses from the northeast U.S. and Canada this morning, March 17. An analysis of currently available data places first visibility of the meteor above Lake Erie. The fireball - caused by a small asteroid nearly 6 feet in diameter and weighing about 7 tons - moved southeast at 45,000 mph before fragmenting over Valley City. The fragments continued on to the south, producing meteorites in the vicinity of Medina County, Ohio. 🔗 https://t.co/tlelW9rfLs Eyewitness accounts supplied by the American Meteor Society
- Jun 3, 20266.6x their median
The Sun emitted a strong solar flare on June 3, peaking at 7:28 a.m. ET. NASA’s Solar Dynamics Observatory captured an image of the event, which was classified as X1.0. https://t.co/LuhZRnB99c https://t.co/JXtBy7eplC
- May 10, 20264.0x their median
It’s #SunDay! Here’s your space weather report for the week of May 1 - 7: •2 M-class flares •2 C-class flares •29 coronal mass ejections •1 geomagnetic storm This video from NASA’s Solar Dynamics Observatory (SDO) shows the week’s activity. It has been a relatively quiet week on the Sun, with the two M-class flares erupting off the Sun’s western limb (right side from SDO’s view) and not producing much impact on Earth. However, a large active region will soon be rotating into Earth’s view — you can see it toward the end of this video emerging from the eastern limb (left side from SDO's view). Keep an eye out in the coming week for potential solar activity! Learn more about space weather: https://t.co/GRxOaTcMdD
- Apr 12, 20263.7x their median
It’s #SunDay! Here’s your space weather report for the week of April 3 - 9: •7 M-class flares •1 M-class flares •16 coronal mass ejections •1 geomagnetic storm This video from NASA’s Solar Dynamics Observatory (SDO) shows the week’s activity. This week’s geomagnetic storm peaked on April 3, sparking auroras around the arctic circle and reaching a strength classification of G3 (strong). The cause was a CME that erupted from the Sun late on April 1. Aside from that, the Sun was fairly quiet during this reporting period. Learn more about space weather: https://t.co/GRxOaTcMdD
- Jul 12, 20263.3x their median
It’s #SunDay! Here’s your space weather report for the week of July 3 - July 9: • 1 X-class flare • 36 M-class flares • 3 C-class flares • 42 coronal mass ejections • 1 geomagnetic storm This video from NASA’s Solar Dynamics Observatory (SDO) shows the week’s activity. The Sun celebrated the fourth of July with a big bang, emitting an intense X-class solar flare (https://t.co/7A82Q6PjTH) and a burst of M-class flares. You can see the show starting at about 0:49 in the video. Learn more about space weather: https://t.co/GRxOaTcMdD
Ranked by total interactions across everything we have tracked for this account, which is a longer history than the 30-day window the rates above use. The multiple compares each post to this account's own median.
Recurring topics
The most frequent hashtags in the sampled posts. They describe what this account writes about; they are not a performance signal, and the catalog-wide breakdown on the hub shows how little hashtag count moves.
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Reading these numbers
A typical post picks up 499 interactions against 1.2M followers, an engagement rate of 0.042%. Posts are seen about 28K times each, and 1.78% of those impressions turn into an interaction. That is about 2.36% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 0.2 posts a day over the last 30 days, though only 20% of days saw any activity at all. Most posts go out around 16:00 UTC, and Sunday is the busiest day of the week. Of the 5 posts sampled, 80% carry an image or video and 80% link out. The account's strongest tracked post pulled 9.1K interactions, about 18x its own typical post. Recurring topics include #sunday, #meteorsighting. Only 5 original posts have been captured so far, fewer than the 8 posts we want behind a median before treating it as settled. Read the figures above as an early measurement of this account, not as a finished profile of it.
- What is NASA Space Alerts's engagement rate on X?
- NASA Space Alerts (@NASASpaceAlerts) has an engagement rate of 0.042%, based on the median interactions across 5 original posts from the last 30 days against 1,188,008 followers. Replies, reposts and quote-posts of other people are excluded from that sample.
- Is that a good engagement rate?
- At 0.042%, NASA Space Alerts sits above the 25th percentile of the 204,424 accounts in this comparison. Those comparison accounts are all large ones, because our scanning cadence is weighted towards big accounts, so this is a ranking among peers of similar scale rather than a ranking across X.
- Does @NASASpaceAlerts have real engagement?
- There is not yet enough sample to rank this account against others of its size.
- When does @NASASpaceAlerts post?
- Most posts go out around 16:00 UTC, and Sunday is its busiest day, at roughly 0.2 posts per day across the measured window.