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caseyshields / Orion

Locate and track stars

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Orion

Star hunting software. An interactive command line tool to search the FK6 star catalog by brightness and current sky position. A TCN sensor can then be concurrently directed at the selected star.

Loading IERS Bulletin "../data/iers/finals2000A.data"... 1992/01/01 00:00:00.000 to 2019/08/31 00:00:00.000
loading FK6 I metadata "../data/fk6/ReadMe"... 93 fields loaded.
loading FK6 III metadata "../data/fk6/ReadMe"... 56 fields loaded.
loading catalog "../data/fk6/fk6_1.dat"... 878 entries total.
loading catalog "../data/fk6/fk6_3.dat"... 4150 entries total.

2018/09/26 23:43:55.503 : time 2000/1/1 12:0:0
Time
	UTC:	2000/01/01 12:00:00.000	(2451545.000000)
	TT:	2000/01/01 12:00:01.150	(2451545.000013)
	UT1:	2000/01/01 12:00:00.355	(2451545.000004)
	dT:	68.829399	measured
Earth Orientation
	MJD:	2000/01/02 00:00:00.000	(2451545.500000)
	pm_x:	0.043541	(e=0.000058)	measured
	pm_y:	0.377638	(e=0.000073)	measured
	ut1_utc:	0.354601	(e=0.000012)	measured

2000/01/01 12:00:00.000 : location
Location
	longitude:	115 7' 3.000000" W	(-115.117500)
	latitude:	36 11' 56.040000" N	(36.198900)
	height:	0.000000 meters

2000/01/01 12:00:00.000 : weather
Atmosphere
	temperature:	 10.0°C
	pressure:	1010.000 millibars

2000/01/01 12:00:00.000 : name alpha
FK6.35: alpha Scl (ra:0.976767, dec:-29.357453, v=4.300000)
FK6.74: alpha Ari (ra:2.119558, dec:23.462420, v=2.010000)
FK6.107: alpha Cet (ra:3.037993, dec:4.089739, v=2.540000)
FK6.120: alpha Per (ra:3.405381, dec:49.861182, v=1.790000)
FK6.155: alpha Hor (ra:4.233365, dec:-42.294368, v=3.850000)
FK6.239: alpha Men (ra:6.170687, dec:-74.753045, v=5.080000)
FK6.245: alpha Car (ra:6.399197, dec:-52.695661, v=-0.620000)
FK6.293: alpha Mon (ra:7.687453, dec:-9.551130, v=3.940000)
FK6.327: alpha Pyx (ra:8.726538, dec:-33.186385, v=3.680000)
FK6.343: alpha Vol (ra:9.040777, dec:-66.396075, v=4.000000)
FK6.352: alpha Lyn (ra:9.350917, dec:34.392568, v=3.140000)
FK6.354: alpha Hya (ra:9.459790, dec:-8.658601, v=1.990000)
FK6.392: alpha Ant (ra:10.452528, dec:-31.067778, v=4.280000)
FK6.1283: alpha Crt (ra:10.996240, dec:-18.298784, v=4.080000)
FK6.542: alpha Aps (ra:14.797697, dec:-79.044751, v=3.830000)
FK6.625: alpha TrA (ra:16.811082, dec:-69.027717, v=1.910000)
FK6.691: alpha Tel (ra:18.449560, dec:-45.968459, v=3.490000)
FK6.1482: alpha Sct (ra:18.586785, dec:-8.244070, v=3.850000)
FK6.699: alpha Lyr (ra:18.615649, dec:38.783690, v=0.030000)
FK6.718: alpha CrA (ra:19.157873, dec:-37.904474, v=4.110000)
FK6.728: alpha Sgr (ra:19.398104, dec:-40.615939, v=3.960000)
FK6.1508: alpha Vul (ra:19.478425, dec:24.664906, v=4.440000)
FK6.777: alpha Cyg (ra:20.690532, dec:45.280337, v=1.250000)
FK6.803: alpha Cep (ra:21.309659, dec:62.585575, v=2.450000)
FK6.827: alpha Aqr (ra:22.096399, dec:-0.319849, v=2.950000)
FK6.871: alpha Peg (ra:23.079348, dec:15.205267, v=2.490000)

2000/01/01 12:00:00.000 : target 245
Catalog Entry
	Catalog designation:	FK6.245
	Flamsteed/Bayer designation:	alpha Car
	right ascension:	6 23' 57.109295"	(6.399197 hours)
	declination:	-52 41' 44.381170"	(-52.695661 degrees)
	proper motion:	(19.37 ra, 23.27 dec) mas/year
	parallax:	10.430000 milliarcseconds
	visual magnitude:	-0.620000
	radial velocity:	20.500000 km/s

2000/01/01 12:00:00.000 : connect 127.0.0.1:43210
Sensor
	ip:	127.0.0.1
	port:	43210

2000/01/01 12:00:00.000 : target 699
Catalog Entry
	Catalog designation:	FK6.699
	Flamsteed/Bayer designation:	alpha Lyr
	right ascension:	18 36' 56.336939"	(18.615649 hours)
	declination:	38 47' 1.283330"	(38.783690 degrees)
	proper motion:	(201.70 ra, 286.67 dec) mas/year
	parallax:	128.930000 milliarcseconds
	visual magnitude:	0.030000
	radial velocity:	-13.500000 km/s

2000/01/01 12:00:00.000 : report 3600 12
Location
	longitude:	115 7' 3.000000" W	(-115.117500)
	latitude:	36 11' 56.040000" N	(36.198900)
	height:	0.000000 meters
Atmosphere
	temperature:	 10.0°C
	pressure:	1010.000 millibars
Catalog Entry
	Catalog designation:	FK6.699
	Flamsteed/Bayer designation:	alpha Lyr
	right ascension:	18 36' 56.336939"	(18.615649 hours)
	declination:	38 47' 1.283330"	(38.783690 degrees)
	proper motion:	(201.70 ra, 286.67 dec) mas/year
	parallax:	128.930000 milliarcseconds
	visual magnitude:	0.030000
	radial velocity:	-13.500000 km/s
UTC	AZ	EL	E	F	G
2000/01/01 12:00:00.000	045.851441	006.746382	835746890	-19779689	673837816
2000/01/01 12:59:60.000	053.198115	015.914285	802842618	-235302997	673051063
2000/01/01 13:59:60.000	059.538597	026.000965	714608353	-435415348	672807461
2000/01/01 14:59:60.000	065.006012	036.735939	577319503	-605890366	672696483
2000/01/01 15:59:60.000	069.650448	047.931170	400432022	-734938974	672636903
2000/01/01 16:59:60.000	073.307028	059.439816	196082926	-813682044	672602795
2000/01/01 17:59:60.000	075.001496	071.126695	-21718666	-836708396	672583722
2000/01/01 18:59:60.000	066.657371	082.711137	-238045692	-802432869	672575083
2000/01/01 19:59:60.000	298.761832	084.273901	-438074710	-713200600	672574870
2000/01/01 20:59:60.000	285.112832	072.803686	-608098459	-575126146	672582845
2000/01/01 21:59:60.000	286.284935	061.104808	-736468741	-397672551	672600802
2000/01/01 22:59:60.000	289.757190	049.562061	-814392763	-193005433	672632763
2000/01/01 23:59:60.000	294.278559	038.313608	-836537816	24837501	672687955

2000/01/01 12:00:00.000 : help
Configuration
	time [YYYY/MM/DD HH:MM:SS.ssssss]
	location [<lat(deg)> <lon(deg)> <height(m)>]
	weather [<temp(C)> <pressure(mBar)>]

Catalog
	name <substr>
	search <mag> [<> <> <> <>(deg)]

TCN Sensor
	connect [ X.X.X.X[:Y] ]
	target [fk6id]

Diagnostic
	status
	report <step(sec)> <count>

	exit

<> : required	[] : optional	() : units

2000/01/01 12:00:00.000 : exit

Process finished with exit code 0

For more information on available commands, see the doxygen pages.

Design

Orion relies heavily on prior work by the US Naval Observatory. It was developed using CLion with the Cygwin and MinGW toolchains. Lightweight unit testing is done with CuTest. Code is documented using doxygen, Mermaid and PlantUML Results are tested against a USNO web app.

Component organization

  • main : A command line interface which allows the user to search the catalog and send targets to the orion server
  • orion : A server which drives a TATS sensor, directing it at given targets
  • catalog : module for filtering and sorting desired stars
  • tracker : performs coordinate transforms according to the current time and location on earth
  • sensor : a dummy server which simulates a slaved sensor
  • vmath : utility library of vector and spherical math routines
  • novasc3.1 : USNO's astrometric software package
  • fk6 : loads raw FK6 data into a catalog. Also has some compatibility with FK5 data. Project page.
  • tats : provides structures and enumeration for dealing with TATS messages
  • iers : Load and search an IERS Bulletin A data file for date and polar offsets. Data files are obtained from IERS. The human readable file can be obtained from USNO as well.

Future Plans

  • Add planet tracking by integrating JPL ephemeris
  • Add rest interface for catalog and tracker functionality using libwebsockets
  • Add web interface which utilizes starmap project to allow user interaction with the catalog
  • Add more Vizier catalogs like the Yale Bright Star Catalog

Links

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Locate and track stars

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