[Isocops] IBEX Orbit #465 ATS Approval ( 23 Oct - 01 Nov 2019 ) - v001 approval
KEN FAIRCHILD
fair-play at comcast.net
Thu Oct 10 17:44:33 EDT 2019
All,
I have looked at the orbit 465 ATS,
IBEX_2019_296_o0465a_v001.scr,
and I approve.
The only constraint violations in
IBEX_2019_296_o0465a_v001.ccvr
are from the removal of the
ACT_SetSpinPulseProtectEnable Enable
commands (2); the violations are expected.
The PL commands in the v001 ATS match those in the v002 STF,
IBEX_2019_296_o0465a_v002.stf.
Ascending and descending command sequences are consistent with each other, 15 Re ascending, the apogee maneuver time and 15 Re descending as determined from the OEF,
IBEX_2019_296_o0465a_v001.oef,
and as verified with ibex_orbit.
There are no star tracker outages.
The ground station command sequences are correct and the timing and bit rates match those in the contacts file,
IBEX_Orbit465_Contacts.txt,
for all contacts (3).
We are doing battery cell balancing this orbit and the balancing commands are correct and offset by enough time from other commands.
The inertial precession maneuver at perigee of orbit 464 left us pointing in safe directions for the orbit 465 arc A ascending and descending sequences:
ibex_rotate -o -u -0.892817,-0.409593,-0.187381 -w ibex-sun -t 2019/10:23:15:06:57
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.892817,-0.409593,-0.187381
which is R.A. +204.644 Decl. -10.800
missing R.A. +207.589 Decl. -11.373 (ibex-sun)
error is R.A. +2.945 Decl. +0.573
for a total 2.946 deg
ibex_rotate -o -u -0.892817,-0.409593,-0.187381 -w ibex-sun -t 2019/10:27:05:51:50
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.892817,-0.409593,-0.187381
which is R.A. +204.644 Decl. -10.800
missing R.A. +210.931 Decl. -12.564 (ibex-sun)
error is R.A. +6.287 Decl. +1.764
for a total 6.404 deg
The inertial maneuver at apogee leaves us pointing in safe directions at the time of the maneuver and for arc B ascending and descending sequences:
ibex_rotate -o -u -0.854528,-0.472426,-0.21586 -w ibex-sun -t 2019/10:27:07:33:48
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.854528,-0.472426,-0.215860
which is R.A. +208.936 Decl. -12.466
missing R.A. +210.998 Decl. -12.587 (ibex-sun)
error is R.A. +2.062 Decl. +0.121
for a total 2.017 deg
ibex_rotate -o -u -0.854528,-0.472426,-0.21586 -w ibex-sun -t 2019/10:27:09:10:04
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.854528,-0.472426,-0.215860
which is R.A. +208.936 Decl. -12.466
missing R.A. +211.062 Decl. -12.608 (ibex-sun)
error is R.A. +2.126 Decl. +0.142
for a total 2.080 deg
ibex_rotate -o -u -0.854528,-0.472426,-0.21586 -w ibex-sun -t 2019/10:31:19:19:31
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.854528,-0.472426,-0.215860
which is R.A. +208.936 Decl. -12.466
missing R.A. +215.456 Decl. -14.095 (ibex-sun)
error is R.A. +6.520 Decl. +1.629
for a total 6.551 deg
The inertial precession maneuver at perigee leaves us pointing in safe directions at the time of the maneuver and at orbit 466 apogee:
ibex_rotate -o -u -0.811712,-0.532222,-0.24055 -w ibex-sun -t 2019/10:31:22:39:00
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.811712,-0.532222,-0.240550
which is R.A. +213.252 Decl. -13.919
missing R.A. +215.597 Decl. -14.148 (ibex-sun)
error is R.A. +2.345 Decl. +0.229
for a total 2.287 deg
ibex_rotate -o -u -0.811712,-0.532222,-0.24055 -w ibex-sun -t 2019-11-05T18:28:45.896Z
Quaternion +0.000000,+0.000000,+0.000000,+0.000000
points axis +1.000000,+0.000000,+0.000000
towards ECI -0.811712,-0.532222,-0.240550
which is R.A. +213.252 Decl. -13.919
missing R.A. +220.234 Decl. -15.638 (ibex-sun)
error is R.A. +6.982 Decl. +1.719
for a total 6.966 deg
No Lo O-mode.
There is no overlap with orbit 464 commands by manual inspection or by checking at
http://ibex.unh.edu/cgi-bin/ats.cgi.
Command Approval Checklist is attached.
Ken
> On October 8, 2019 at 6:36 PM "Perry, Timothy" <Timothy.Perry at ngc.com> wrote:
>
>
> All,
>
> Attached are the planning files for Orbit #465
>
> Please respond to this thread with comments and approvals.
>
> Approvals are required by COB on 12 Oct 2019.
>
>
> Please note the following:
>
> 1. Battery Balancing
>
> # Orbit 465 Battery Balancing
>
> # 2019-11-01T05:14:46.194Z,Perigee,orbit:465
>
> @ECT_SetLongEclipseFlag TRUE $TIME=2019/11:01:05:00:00
>
> @ECT_SetLongEclipseFlag FALSE $TIME=2019/11:01:06:30:00
>
>
>
> 2. @ Inertial maneuvers
>
>
>
> 3. Command Load Constraint Violation Report (CCVR)
>
> ==========================
>
> HARD CONSTRAINT VIOLATIONS
>
> ==========================
>
> NO VIOLATIONS.
>
>
>
> ==========================
>
> SOFT CONSTRAINT VIOLATIONS
>
> ==========================
>
> IBX-CLC-016: No command to enable spin pulse protection was found after
>
> transition to science mode at 2019/10/23 12:34:18 UTC
>
> IBX-CLC-016: No command to enable spin pulse protection was found after
>
> transition to science mode at 2019/10/27 08:40:04 UTC
>
>
>
> ==============
>
> OTHER MESSAGES
>
> ==============
>
> NO MESSAGES.
>
>
>
>
>
>
>
>
>
> Timothy E.Perry
>
> CRS IBEX OCO-2
>
> Mission Operations
>
> timothy.perry at ngc.com
>
> Office (703) 406-5976
>
> Cell (301) 606-1430
>
>
>
> [cid:image001.png at 01D542D6.6047A400]
>
>
>
>
>
>
>
> ---------------------------------------------
> Notice: This e-mail is intended solely for use of the individual or entity to which it is addressed and may contain information that is proprietary, privileged and/or exempt from disclosure under applicable law. If the reader is not the intended recipient or agent responsible for delivering the message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. This communication may also contain data subject to U.S. export laws. If so, data subject to the International Traffic in Arms Regulation cannot be disseminated, distributed, transferred, or copied, whether incorporated or in its original form, to foreign nationals residing in the U.S. or abroad, absent the express prior approval of the U.S. Department of State. Data subject to the Export Administration Act may not be disseminated, distributed, transferred or copied contrary to U. S. Department of Commerce regulations. If you have received this communication in error, please notify the sender by reply e-mail and destroy the e-mail message and any physical copies made of the communication.
> Thank you.
> *********************
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.sr.unh.edu/pipermail/isocops/attachments/20191010/75bbbc49/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: IBEX-Command-Approval-Checklist-Rev16e-o0465_KWF.doc
Type: application/msword
Size: 119296 bytes
Desc: not available
URL: <https://lists.sr.unh.edu/pipermail/isocops/attachments/20191010/75bbbc49/IBEX-Command-Approval-Checklist-Rev16e-o0465_KWF-0001.doc>
More information about the Isocops
mailing list