Nongravitational nominal solution
Obs. arc: 1956 11 08 - 1958 04 11 Number of obs: 249 RMS: 1.39 arc second, (458 residuals used, 8.0% rejected residuals)
Heliocentric osculating orbit at the standard epoch close to perihelion time (the same as in MWC08)
Epoch Perihelion time q e ω Ω i
1957 03 23 19570408.032187 0.31603140 1.00016037 308.780727 215.855526 119.933201
± 0.000059 0.00000178 0.00000622 0.000324 0.000071 0.000281
NG parameters:
A1=(1.9481 ± 0.1391) 10-8 AU/day2
A2=(0.11227 ± 0.02225) 10-8 AU/day2
A3=(0.37285 ± 0.08729) 10-8 AU/day2
Heliocentric osculating orbit at the epoch close to the discovery date (used as starting orbit in this investigation)
Epoch Perihelion time q e ω Ω i
1956 10 14 19570408.028353 0.31598046 1.00021561 308.783333 215.856590 119.939289
± 0.000158 0.00000245 0.00000369 0.000334 0.000090 0.000075
NG parameters:
A1=(1.9481 ± 0.1391) 10-8 AU/day2
A2=(0.11227 ± 0.02225) 10-8 AU/day2
A3=(0.37285 ± 0.08729) 10-8 AU/day2
Barycentric nominal original orbit (at 250 AU from the Sun)
Epoch Perihelion time q e ω Ω i
1660 03 19 19570408.524057 0.31732219 0.99999671 308.750253 216.471093 119.981218
± 0.003916 0.00000252 0.00000362 0.000332 0.000087 0.000075
1/aori = (+10.37 ± 11.42) 10-6 AU-1
Barycentric nominal future orbit (at 250 AU from the Sun)
Epoch Perihelion time q e ω Ω i
2247 12 28 19570408.428079 0.31297901 1.00018143 308.809544 216.772869 119.896440
± 0.000086 0.00000240 0.00000312 0.000342 0.000071 0.000053
1/afut = (-579.69 ± 9.97) 10-6 AU-1
In the 17th edition of the Catalogue of Cometary orbits (2008):
Nongravitational orbit (150 obs.) with A1= 1.7 10-8 AU/day2, A2= +0.1 10-8 AU/day2
The same comet in some other internet sources:
Starting swarms of VCs...(heliocentric, osculating orbits)
Gravitational osculating swarm
Nongravitational osculating swarm
Original and future orbit at the 250 AU from the Sun.
Comet number 7 in the Table: Nongravitational Oort spike comets (26 objects)
| Name | GR (1/a)ori [10-8 AU/day2] | GR (1/a)osc [10-8 AU/day2] epoch [TT] | GR 1/afut [10-8 AU/day2] | RMSGR [arcsec] | NG (1/a)ori [10-8 AU/day2] | NG (1/a)osc [10-8 AU/day2] epoch [TT] | NG 1/afut [10-8 AU/day2] | RMSNG [arcsec] | NG parameters A1 A2 A3 [10-8 AU/day2] tau shift [day] | |
| 7 | C/1956 R1 Arend-Roland weighting | -97.97 ± 5.46 | -790.89 ± 5.39 1956 10 14 | -603.51 ± 5.47 | 1.68 | +10.37 ± 11.42 | -682.34 ± 11.68 1956 10 14 | -579.69 ± 9.97 | 1.39 | 1.948 ± 0.139 0.1123 ± 0.0223 0.3729 ± 0.0873 |
Note: in the following plots black denotes returning clones while red denotes escaping ones.The nominal solution is located at the center of the green circle. Each plot have a header where date of calculation and some other parameters are coded. Also numbers of returning (B=shown+omitted), escaping (C=shown+omitted) and all (T=shown+omitted) Vcs are shown.
Past orbits, at previous perihelion for the returning VCs :
Past, gravitational, asynchronous.
Past, gravitational, synchronous.
Past, nongravitational, asynchronous.
Past, nongravitational, synchronous.
Future orbits, at escape border (no returning VCs) :
Future, gravitational, asynchronous.
Future, gravitational, synchronous.
Future, nongravitational, asynchronous.
Future, nongravitational, synchronous.
