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IRIDE FM4

In orbit NORAD 66698 RITP-8166-0494-0498-1549

Observations 0
Satellite appearance

—

Falcon 9 Block 5 | Transporter 15 (Dedicated SSO Rideshare)

Falcon 9 Block 5

Carrier rocket

Space Launch Complex 4E

Spaceport

0

Observations all time

Mission information
Spacecraft name
IRIDE FM4
Status
Active
The satellite is in orbit
The network has not received data from this satellite for a long time
Launch and timeline
Launch
Falcon 9 Block 5 | Transporter 15 (Dedicated SSO Rideshare)
Carrier rocket
Falcon 9 Block 5
Spaceport
Space Launch Complex 4E
Launch time
Separation time
Satellite appearance
Data for the last 30 days
Orbital parameters of the satellite
Perigee
501.00 km
Apogee
505.74 km
Inclination
97.4°
Period
94.7 min
Semi-major axis
6881.5 km
Velocity
7.61 km/s
Orbital elements
TLE source
Celestrak
TLE updated
2026-06-24 05:59:05 UTC
Two-line elements (TLE)
1 66698U 25276AJ  26174.93537374  .00005084  00000+0  24047-3 0  9994
2 66698  97.4183 248.2865 0003443   7.6951 352.4336 15.19812614 31442
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Orbit history, past year

Mean elements of every TLE set over the past 365 days, plotted against the epoch of the set. Each source is its own line; click it in the legend to hide it. A jump in altitude is a manoeuvre or a bad set; lines drifting apart are a disagreement between sources. “TLE age” is how many hours have passed since the epoch of the source's freshest set, plotted against when the set reached us, on a logarithmic scale. A set the source repeats unchanged does not reset the age.

Prediction divergence

Each TLE set is propagated with SGP4 to the epoch of the next set from the same source and compared with it, plotted against the epoch of the next set; the tooltip shows how many hours ahead the prediction ran. The logarithmic scale shows the size of the divergence and the tooltip its sign: plus along-track means the prediction is ahead of the satellite. This is how well the sets agree, not the true error: the reference is a TLE too, off by about a kilometre. An outlier is a manoeuvre between sets. Sets more than a week apart are not compared.

Time of closest approach, UTC Object 1 Object 2 Distance, km Speed, km/s Max. probability
2026-10-15 10:03:43 FOSSASAT-2E19 (TAT-E)
NORAD 62676 		IRIDE-MS1-EAGLET 2-4
NORAD 66698 		1.706 0.61 1.5e-06
2026-10-15 12:25:36 IRIDE-MS1-EAGLET 2-4
NORAD 66698 		ZIYUAN 3-04 (ZY 3-04)
NORAD 67131 		4.024 0.72 2.7e-07
2026-10-15 13:12:58 IRIDE-MS1-EAGLET 2-4
NORAD 66698 		ZIYUAN 3-04 (ZY 3-04)
NORAD 67131 		4.733 0.72 2.0e-07
2026-10-15 22:23:17 IRIDE-MS1-EAGLET 2-4
NORAD 66698 		THORAD AGENA D DEB
NORAD 4157 		3.119 15.13 1.6e-07
2026-10-16 14:30:03 IRIDE-MS1-EAGLET 2-4
NORAD 66698 		FLOCK 4H-18
NORAD 66721 		1.407 0.00 8.7e-05
2026-10-16 15:16:26 IRIDE-MS1-EAGLET 2-4
NORAD 66698 		FLOCK 4H-18
NORAD 66721 		0.225 0.00 8.7e-05
2026-10-17 18:20:47 KANOPUS-V-IK
NORAD 42825 		IRIDE-MS1-EAGLET 2-4
NORAD 66698 		2.982 15.01 1.8e-07
2026-10-17 21:19:34 IRIDE-MS1-EAGLET 2-4
NORAD 66698 		TRANSPORTER-16 OBJECT AT
NORAD 68457 		0.847 12.64 3.8e-06
2026-10-17 22:06:56 IRIDE-MS1-EAGLET 2-4
NORAD 66698 		TRANSPORTER-16 OBJECT AT
NORAD 68457 		4.443 12.67 1.4e-07
2026-10-18 20:12:44 IRIDE-MS1-EAGLET 2-4
NORAD 66698 		FLOCK 4H-29
NORAD 66732 		4.941 0.01 1.8e-07
2026-10-18 20:56:30 IRIDE-MS1-EAGLET 2-4
NORAD 66698 		FLOCK 4H-29
NORAD 66732 		4.278 0.01 2.4e-07
2026-10-18 21:45:07 IRIDE-MS1-EAGLET 2-4
NORAD 66698 		FLOCK 4H-29
NORAD 66732 		1.334 0.01 2.5e-06
2026-10-18 21:45:23 IRIDE-MS1-EAGLET 2-4
NORAD 66698 		TRANSPORTER-18 OBJECT BG
NORAD 100937 		4.697 0.28 2.0e-07
2026-10-18 21:52:23 IRIDE-MS1-EAGLET 2-4
NORAD 66698 		FENGYUN 1C DEB
NORAD 31441 		4.599 14.54 9.1e-08
2026-10-18 22:32:16 IRIDE-MS1-EAGLET 2-4
NORAD 66698 		FLOCK 4H-29
NORAD 66732 		0.417 0.01 2.5e-05
2026-10-18 23:17:16 IRIDE-MS1-EAGLET 2-4
NORAD 66698 		FLOCK 4H-29
NORAD 66732 		4.234 0.01 2.4e-07
2026-10-18 23:20:36 ASNARO
NORAD 40298 		IRIDE-MS1-EAGLET 2-4
NORAD 66698 		4.612 0.17 2.1e-07
2026-10-19 00:07:54 IRIDE-MS1-EAGLET 2-4
NORAD 66698 		FLOCK 4H-29
NORAD 66732 		4.838 0.01 1.9e-07
2026-10-19 05:38:53 IRIDE-MS1-EAGLET 2-4
NORAD 66698 		MERCURY ONE (M1)
NORAD 66742 		2.095 0.01 1.0e-06
2026-10-19 06:19:50 IRIDE-MS1-EAGLET 2-4
NORAD 66698 		MERCURY ONE (M1)
NORAD 66742 		3.074 0.01 1.0e-06
2026-10-19 12:32:41 IRIDE-MS1-EAGLET 2-4
NORAD 66698 		LPNTSAT-001 (IOD-1)
NORAD 68408 		4.358 14.98 8.6e-08
2026-10-19 21:26:31 IRIDE-MS1-EAGLET 2-4
NORAD 66698 		TERRA NOVA
NORAD 100909 		3.793 0.28 3.1e-07
2026-10-20 01:27:20 OBJECT B
NORAD 62726 		IRIDE-MS1-EAGLET 2-4
NORAD 66698 		4.729 0.01 2.0e-07
2026-10-20 15:35:27 IRIDE-MS1-EAGLET 2-4
NORAD 66698 		FLOCK 4H-23
NORAD 66726 		4.572 0.03 2.1e-07
2026-10-20 16:22:41 IRIDE-MS1-EAGLET 2-4
NORAD 66698 		FLOCK 4H-23
NORAD 66726 		2.834 0.03 5.5e-07
2026-10-20 17:10:00 IRIDE-MS1-EAGLET 2-4
NORAD 66698 		FLOCK 4H-23
NORAD 66726 		1.835 0.03 1.3e-06
2026-10-20 17:57:23 IRIDE-MS1-EAGLET 2-4
NORAD 66698 		FLOCK 4H-23
NORAD 66726 		3.238 0.03 4.2e-07

Data: CelesTrak SOCRATES Plus, computed from TLEs of the public catalog. This is an estimate, not grounds for a manoeuvre: TLEs carry no covariance, and the maximum probability assumes a position error.

All conjunctions of this satellite