(Time / deltaT) TJM out of range error

Aleksandr Serebryanskiy

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Dec 8, 2025, 7:31:57 AM12/8/25

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Dear all,

Does anyone have a clue why I got this error? ((Time / deltaT) TJM out of range error)

I'm trying to execute the command :

oorb --task=ranging --obs-in=6703_20042025_N42.mpc --orb-out=ORBITFILEOUT_TEST

with input measurements

6703_20042025_N42.mpc listed below.

---

# version=2017
# observatory
! mpcCode N42
# submitter
! name I.Reva
# observers
! name I.Reva
# measurers
! name A.Serebryanskiy
# telescope
! design reflector
! aperture 1.00
! fRatio 6.6
! detector CCD
# software
! astrometry Tycho 12.3.1
! photometry Tycho 12.3.1
permID |provID |trkSub |mode|stn |obsTime |ra |dec |rmsRA|rmsDec|rmsFit|astCat |mag |rmsMag|band|photCat |photAp|logSNR|exp |notes|remarks
6703|1988 CH | ABC0044| CCD|N42 |2025-04-12T16:26:58Z |160.54991 |+9.42018 |0.22 |0.18 |0.28 | Gaia3E|16.9 |0.04 | G| Gaia3E| 6.2 |1.86 |1530| K|
6703|1988 CH | ABC0044| CCD|N42 |2025-04-12T16:54:30Z |160.54911 |+9.42097 |0.22 |0.18 |0.28 | Gaia3E|17.1 |0.09 | G| Gaia3E| 6.2 |1.79 |1530| K|
6703|1988 CH | ABC0044| CCD|N42 |2025-04-12T17:21:13Z |160.54829 |+9.42175 |0.24 |0.20 |0.28 | Gaia3E|17.2 |0.09 | G| Gaia3E| 6.2 |1.30 |1440| K|
6703|1988 CH | ABC0013| CCD|N42 |2025-04-20T16:04:19Z |160.48083 |+9.65628 |0.10 |0.15 |0.17 | Gaia3E|17.2 |0.05 | G| Gaia3E| 3.8 |1.80 |4500| K|
6703|1988 CH | ABC0013| CCD|N42 |2025-04-20T17:25:38Z |160.48146 |+9.65722 |0.10 |0.15 |0.17 | Gaia3E|17.3 |0.03 | G| Gaia3E| 3.8 |1.90 |4500| K|
6703|1988 CH | ABC0013| CCD|N42 |2025-04-20T18:46:56Z |160.48219 |+9.65816 |0.10 |0.15 |0.17 | Gaia3E|17.4 |0.03 | G| Gaia3E| 3.8 |1.81 |4500| K|

Mikael Granvik

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Dec 8, 2025, 7:55:15 AM12/8/25

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Dear Aleksandr,

the *.mpc format accepted by OpenOrb is the old 80-column format.

https://minorplanetcenter.org/iau/info/OpticalObs.html

The error message is misleading, and need to be fixed.

Best regards,
Mikael

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Aleksandr Serebryanskiy

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Dec 8, 2025, 8:55:13 AM12/8/25

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Dear Mikael,

Thank you very much for prompt reply and clarification!

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