ISAR Spectrum - Andøya - 2026-09-05 20:12 UTC

I have updated Platform-6’s configuration on the DB.

Furthermore, we have made a TLE based upon the state vector from ISAR:

1 98405U 26072END 26084.88583771  .00000000  00000-0  78483-3 0  9993
2 98405  97.3981 160.9490 0011291 301.2402  22.8277 15.19404090 00012

I have used the same numbering system on the DB.

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@yurimdias for which launch time is this TLE?

@fredy This was for the original time of 20:06 UTC, which is not happening anymore now. I’ll update if we have anything from Isar.

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Used the TLE you provided with the new launch time, so for 2026-03-25 20:20:59 UTC:

Platform-6
1 98405U 14900A   26084.89625438  .00000000  00000-0  78483-3 0    01
2 98405  97.3981 164.7093 0011291 301.2402  22.8277 15.19404090    02
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Unfortunately the launch was scrubbed, we will wait the next hours/days for a new launch datetime.

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Update on this from the ISAR twitter/X account https://x.com/isaraerospace/status/2041817626024788466

Targeting NET 9 April for the launch of Mission ‘Onward and Upward’ during the available launch window, which opens at 8pm UTC; 10pm CEST.
The final date remains subject to weather, safety and range infrastructure.

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From: Mission Updates Overview - Isar Aerospace

Isar Aerospace is targeting NET 9 April to launch Mission ‘Onward and Upward’ during the available launch window, which opens at 8pm UTC; 10pm CEST. The final date remains subject to weather, safety and range infrastructure.

The second flight and qualification mission of Isar Aerospace’s ‘Spectrum’ launch vehicle will be broadcast live on YouTube: https://youtube.com/live/Ss1DUqLjecc

The livestream will start at approximately:

T-01h00min  

9:00pm CEST  

7:00pm UTC  

3:00pm EDT
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It looks like we will wait a little more for this launch:

Isar Aerospace is standing down from today’s launch attempt to evaluate a leak in a composite overwrapped pressure vessel (COPV).

The teams are assessing and will determine next steps.

Daniel Metzler, CEO and Co-Founder Isar Aerospace: “There is no question that we will reach orbit and demonstrate reliable access to space. Scrubs are part of rocket industry; every successful rocket company has been here. Each attempt gives us valuable experience and lessons learned on our path to orbit. Our teams are assessing the matter, and we will be back on the pad ready to launch soon.”

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Isar annouced a new launch window beginning tomorrow evening at 20:00 UTC, live stream starts an hour earlier:
Mission Updates Overview - Isar Aerospace

Isar Aerospace is targeting NET 15 June to launch Mission ‘Onward and Upward’ during the available launch window, which opens at 8pm UTC; 10pm CEST. The final date remains subject to weather, safety and range availability.

Mission objective: operational qualification

Mission ‘Onward and Upward’ is Isar Aerospace’s second flight and qualification mission for the Spectrum launch vehicle. The mission carries five CubeSats and one experiment and aims to validate the vehicle’s critical systems under operational conditions. The mission is supported by ESA’s Boost! Programme.

Livestream

The mission will be broadcast live on YouTube: https://youtube.com/live/Ss1DUqLjecc?feature=share

The livestream will start at approximately:

T-01h00min

9:00pm CEST

7:00pm UTC

3:00pm EDT

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Launch is postponed :frowning:

08:06 GMT+2 ∙ 15 Jun, 2026

Isar Aerospace is standing down from today’s launch attempt. We are still detecting off nominal behavior in the vehicle’s fluid systems, the teams are analyzing the new data to isolate the root cause.

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New launch datetime: 2026-09-04 20:00 UTC

Here is also the thread in the nasaspaceflight forum.

We are going to prepare/update DB entries and scheduling in Network tomorrow close to the launch time.

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Is Platform-6 (98405) the only satellite of interest on this launch?

Since the thread goes back so far, I didn’t know if all the details were the same or what.

Thanks!

from their website, look like still same.

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Oh! -6- sats, then. Thanks a million!

can we update the tle just using propagate tools from sattools ?

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The launch is now scheduled for tomorrow 2026-09-05 20:00 UTC

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Looking at the epoch from these TLE Wed Mar 25 2026 20:30:36 propagate gives us:

propagate -c p.tle -i 98405 -t 2026-09-05T20:00:00

PLATFORM-6
1 98405U 14900A   26248.83333333  .00000000  00000-0  78483-3 0    07
2 98405  97.3981 325.9882 0011352  87.3901 237.6544 15.25336009    07

I hope someone from the team can validate these.

Jan | PE0SAT

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Loading the TLE in satorbit, I don’t think these are correct.

Jan | PE0SAT

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http://software.langbroek.org/

PLATFORM-6
1 70000U 26999A   26248.88168262  .00000000  00000-0  78483-3 0    01
2 70000  97.3981 321.0953 0011291 301.2402  22.8277 15.19404090    06
PLATFORM-6
1 98405U          26248.88168262  .00000000  00000-0  78483-3 0    05
2 98405  97.3981 321.0953 0011291 301.2402  22.8277 15.19404090    05
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what we know (disclaimer: not official, just assumption):
launchtime: 2026-09-05T20:00:00

inclination
97.3981

altitude
500 KM

SSO

Launchpad:
Andøya Spaceport, Nordmela, Andøya, Norway.
Latitude, Longitude: 69.108574,15.5884013

direction:
generally southward over the Norwegian Sea, the mission is targeting a near-polar, retrograde orbit with a southward departure over the Norwegian Sea
northwest based on NOTAM (thanks @julianharbeck )

command:
faketle -n 321.7 -m 70.38 -q 498 -Q 501 -I 97.3981 -t 2026-09-05T20:00:00 -d 300 -i 98405U > fake-platform.txt && satorbit -c fake-platform.txt -q -t 2026-09-05T20:05:00 -B 69.108574 -L 15.5884013

result:

PLATFORM-6
1 98405U          26248.83680556  .00000000  00000-0  50000-4 0    01
2 98405  97.3981 321.7000 0002181   0.0000  70.3800 15.22103815    06
TRISAT-S
1 98406U          26248.83680556  .00000000  00000-0  50000-4 0    02
2 98406  97.3981 321.7000 0002181   0.0000  70.3800 15.22103815    07
FRAMSAT-1
1 98914U          26248.83680556  .00000000  00000-0  50000-4 0    06
2 98914  97.3981 321.7000 0002181   0.0000  70.3800 15.22103815    01
SPACETEAMSAT1
1 99416U          26248.83680556  .00000000  00000-0  50000-4 0    04
2 99416  97.3981 321.7000 0002181   0.0000  70.3800 15.22103815    09
CyBEEsat
1 98528U          26248.83680556  .00000000  00000-0  50000-4 0    07
2 98528  97.3981 321.7000 0002181   0.0000  70.3800 15.22103815    02

isar-spectrum-northwest.txt (752 Bytes)

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