| 1627 Ivar (1929 SH) |
| Classification: Amor [NEO] SPK-ID: 2001627 |
[ hide orbit diagram ]
For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 1011 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .3967830583744957 | 1.3337e-08 | |
| a | 1.86327294504367 | 1.815e-10 | au |
| q | 1.123957807322788 | 2.4798e-08 | au |
| i | 8.451869889021321 | 2.3953e-06 | deg |
| node | 133.1193427586828 | 1.4166e-05 | deg |
| peri | 167.7934626032436 | 1.4064e-05 | deg |
| M | 256.5069001498996 | 1.1972e-06 | deg |
| tp | 2459267.568113285847
(2021-Feb-22.06811329) | 3.0829e-06 | TDB |
| period | 928.9945022630588
2.54 | 1.3574e-07
3.716e-10 | d
yr |
| n | .3875157486110295 | 5.6622e-11 | deg/d |
| Q | 2.602588082764551 | 2.5352e-10 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
12.7 |
|
n/a |
MPO502169 |
|
| magnitude slope |
G |
0.60 |
|
n/a |
PDS3 (MPC 17262) |
Fit |
| diameter |
diameter |
9.12 |
km |
n/a |
Delbo et al. (2003). Icarus, v. 166, pp. 116-130 |
|
| rotation period |
rot_per |
4.795 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Harris, A.W.; Young, J.W. (1985) Bull. Amer. Astron. Soc. 17, 726.]
[Lupishko, D.F.; Velichko, F.P.; Shevchenko, V.G. (1986) Kin. Fiz. Neb. Tel 2(5), 39-43; Kinematics and Physics of Celestial Bodies 2(5), 47-51.]
[Hahn, G.; Magnusson, P.; Harris, A.W.; Young, J.W.; et al. (1989) Icarus 78, 363-381.]
[Pravec, P.; Sarounova, L.; Wolf, M. (1996) Icarus 124, 471-482.]
[Kiss, L.L.; Szabo, G.; Sarneczky, K. (1999) Astron. Astrophys. Suppl. Ser. 140, 21-28.]
[Szabo, G.; Kiss, L.L. (2001) Publ. Astron. Dept. of Eotvos U. #11, p. 119-124.]
[Kaasalainen, M.; et al. (2004) Icarus 167, 178-196.]
[Warner, B.D. (2014) Minor Planet Bull. 41, 41-47.]
[Hanus, J.; Delbo, M.; Durech, J.; Ali-Lagoa, V. (2015) Icarus 256, 101-116.]
[Warner, B.D. (2015) Minor Planet Bull. 42, 172-183.]
[Crowell, J.L.; Howell, E.S.; Magri, C.; Nolan, M.C.; et al. (2017) Icarus 291, 254-267.]
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D. (2018) Minor Planet Bull. 45, 366-379.]
[Alton, K.B. (2019) Minor Planet Bull. 46, 114-117.]
[Skiff, B.A.; McLelland, K.P.; Sanborn, J.J.; Pravec, P.; Koehn, B.W. (2019) Minor Plantet Bull. 46, 238-265.]
[Warner, B.D.; Stephens, R.D. (2020) Minor Planet Bull. 47, 200-213.] |
| geometric albedo |
albedo |
0.15 |
|
n/a |
Delbo et al. (2003). Icarus, v. 166, pp. 116-130 |
|
| B-V |
BV |
0.872 |
|
0.013 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=4; phase (min.=.00, mean=9.63, max.=19.11) deg. |
| U-B |
UB |
0.459 |
|
0.013 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=4; phase (min.=.00, mean=9.63, max.=19.11) deg. |
| Tholen spectral type |
spec_T |
S |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices |
| SMASSII spectral type |
spec_B |
S |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) |
|
| 1627 Ivar (1929 SH) Discovered 1929-Sep-25 by Hertzsprung, E. at Johannesburg (LS) |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
[ hide close-approach data ]
Close-Approach Data ...sorted by Date/Time (TDB)
|
| Date/Time (TDB) |
Time Uncertainty
(days_HH:MM) |
Body |
Nominal Distance (au) |
Minimum Distance (au) |
Maximum Distance (au) |
V-relative (km/s) |
V-infinity (km/s) |
JD (TDB) |
Time Uncertainty (minutes) |
Semi-major axis (km) |
Semi-minor axis (km) |
range-LOV angle (deg) |
N-sigma |
BP |
Orbit Ref. |
Reference |
Modified |
| 1901-Jul-11 20:46 |
< 00:01 |
Earth |
0.246545515569606 |
0.246545241818848 |
0.246545789320365 |
8.38353751248153 |
8.3822483094116 |
2415577.365470126 |
0.0749629707369841 |
13.8749328449312 |
5.53059715450278 |
11.3748061644431 |
1654275.96079601 |
T |
1011 |
CATAB v2.0f-lin.ifort 2020-Jul-12 06:35:57 |
2020-Jul-12 06:36 |
| 1906-Aug-17 18:28 |
< 00:01 |
Earth |
0.393166750623468 |
0.393166396237441 |
0.393167105009517 |
13.4704491105337 |
13.4699460020876 |
2417440.269565662 |
0.0304213702822567 |
18.3024585751056 |
4.50163240009403 |
15.5821629563166 |
3965530.42582953 |
T |
1011 |
CATAB v2.0f-lin.ifort 2020-Jul-12 06:35:57 |
2020-Jul-12 06:36 |
| 1929-Jul-19 10:23 |
< 00:01 |
Earth |
0.166522677711391 |
0.166522538384891 |
0.166522817037909 |
6.54987970675128 |
6.54743635125782 |
2425811.932895993 |
0.0494236804058229 |
8.07932547908106 |
4.75557548844813 |
39.2213090640729 |
2485368.76509604 |
T |
1011 |
CATAB v2.0f-lin.ifort 2020-Jul-12 06:35:57 |
2020-Jul-12 06:36 |
| 1934-Aug-22 18:18 |
< 00:01 |
Earth |
0.482950514949334 |
0.482950269694615 |
0.482950760204081 |
15.8821932673442 |
15.8818458879958 |
2427672.262343798 |
0.0367413348144956 |
13.3297415972454 |
4.32302599207999 |
24.867835757867 |
7539136.99718278 |
T |
1011 |
CATAB v2.0f-lin.ifort 2020-Jul-12 06:35:57 |
2020-Jul-12 06:36 |
| 1957-Jul-21 08:58 |
< 00:01 |
Earth |
0.150179763570071 |
0.15017969708574 |
0.150179830054403 |
6.29271402235159 |
6.28989394987243 |
2436040.873820334 |
0.0377363067731663 |
5.94876773286339 |
3.23268593820367 |
81.5779732695879 |
4234694.23389004 |
T |
1011 |
CATAB v2.0f-lin.ifort 2020-Jul-12 06:35:57 |
2020-Jul-12 06:36 |
| 1962-Aug-23 03:49 |
< 00:01 |
Earth |
0.486435277353995 |
0.486435126263727 |
0.48643542844429 |
15.9410863469201 |
15.9407427303805 |
2437899.658914312 |
0.040202209791159 |
9.33709345519161 |
3.90695089843888 |
40.5670960715899 |
12108823.3909601 |
T |
1011 |
CATAB v2.0f-lin.ifort 2020-Jul-12 06:35:57 |
2020-Jul-12 06:36 |
| 1985-Jul-16 15:26 |
< 00:01 |
Earth |
0.200732931315925 |
0.200732878382742 |
0.200732984249108 |
7.3196276344464 |
7.31781396327257 |
2446263.143046596 |
0.0412651090873916 |
5.85241229857062 |
2.63818187211941 |
-89.7974074248563 |
4912606.67977509 |
T |
1011 |
CATAB v2.0f-lin.ifort 2020-Jul-12 06:35:57 |
2020-Jul-12 06:36 |
| 1990-Aug-19 15:40 |
< 00:01 |
Earth |
0.407668921750179 |
0.40766880993473 |
0.40766903356565 |
13.8788252098887 |
13.8783542765743 |
2448123.152490236 |
0.0400590612302016 |
7.96373124366387 |
3.01364050408983 |
50.4751108992243 |
16981671.3627628 |
T |
1011 |
CATAB v2.0f-lin.ifort 2020-Jul-12 06:35:57 |
2020-Jul-12 06:36 |
| 2013-Jul-06 21:16 |
< 00:01 |
Earth |
0.321571413076571 |
0.321571396184407 |
0.321571429968735 |
10.4527099261123 |
10.4519172012251 |
2456480.385869580 |
0.0502566804813679 |
5.97680073711958 |
0.83942705259021 |
89.441820672656 |
9076299.79832652 |
T |
1011 |
CATAB v2.0f-lin.ifort 2020-Jul-12 06:35:57 |
2020-Jul-12 06:36 |
| 2018-Aug-12 14:32 |
< 00:01 |
Earth |
0.283998068987753 |
0.283997980962593 |
0.28399815701293 |
10.500608730627 |
10.4997152174304 |
2458343.105629311 |
0.037697810569456 |
6.74174107260537 |
3.0910069156437 |
58.6490784254405 |
16418800.9411928 |
T |
1011 |
CATAB v2.0f-lin.ifort 2020-Jul-12 06:35:57 |
2020-Jul-12 06:36 |
| 2041-Jun-29 06:58 |
< 00:01 |
Earth |
0.435301550701917 |
0.435301482887827 |
0.435301618516007 |
13.6383375311575 |
13.6378887156503 |
2466699.789974186 |
0.0499322328365733 |
5.94004788028862 |
3.33873857576731 |
83.7222531303907 |
14627828.3437733 |
T |
1011 |
CATAB v2.0f-lin.ifort 2020-Jul-12 06:35:57 |
2020-Jul-12 06:36 |
| 2046-Aug-06 06:42 |
< 00:01 |
Earth |
0.177476685133231 |
0.177476604784513 |
0.177476765481959 |
7.83198422622633 |
7.83006709252696 |
2468563.779316535 |
0.0338301168055278 |
5.85637087080017 |
3.9857661275517 |
84.477044580217 |
5909881.15469807 |
T |
1011 |
CATAB v2.0f-lin.ifort 2020-Jul-12 06:35:57 |
2020-Jul-12 06:36 |
| 2074-Aug-03 16:48 |
< 00:01 |
Earth |
0.140738167182974 |
0.140738102521755 |
0.14073823184421 |
6.97129674682703 |
6.96858048573708 |
2478788.200008796 |
0.0362908664667331 |
6.28242428668754 |
2.90424256163801 |
-75.4568583478524 |
4438689.04493287 |
T |
1011 |
CATAB v2.0f-lin.ifort 2020-Jul-12 06:35:57 |
2020-Jul-12 06:36 |
| 2097-Jun-25 12:24 |
< 00:01 |
Earth |
0.48654775619212 |
0.486547435615895 |
0.486548076768345 |
15.281467629253 |
15.2811092631623 |
2487150.016757518 |
0.0269147479559474 |
15.9879373869612 |
5.8602026598892 |
-1.06460601246745 |
4004399.0992572 |
T |
1011 |
CATAB v2.0f-lin.ifort 2020-Jul-12 06:35:57 |
2020-Jul-12 06:36 |
| 2102-Aug-06 04:18 |
< 00:01 |
Earth |
0.156950537146998 |
0.156950355085832 |
0.1569507192082 |
7.31419558964151 |
7.31187417935096 |
2489016.678993181 |
0.0500087258447112 |
9.90924998956641 |
4.85577814948386 |
-27.4477273206743 |
1883107.48323454 |
T |
1011 |
CATAB v2.0f-lin.ifort 2020-Jul-12 06:35:57 |
2020-Jul-12 06:36 |
| 2125-Jul-03 19:10 |
< 00:01 |
Earth |
0.397284743061542 |
0.397284250304687 |
0.397285235818396 |
12.5975271907695 |
12.5969947953108 |
2497384.298657625 |
0.0168429994801573 |
24.6054284883314 |
5.9413701176606 |
-3.13891215778593 |
1997209.56018822 |
T |
1011 |
CATAB v2.0f-lin.ifort 2020-Jul-12 06:35:57 |
2020-Jul-12 06:36 |
| 2130-Aug-12 12:53 |
< 00:01 |
Earth |
0.249441383318024 |
0.249440974733042 |
0.249441791903021 |
9.57319408173012 |
9.57207821507864 |
2499250.036791357 |
0.0713130765707122 |
20.5126961276097 |
4.64479177336665 |
-6.93623627917319 |
1329850.86096215 |
T |
1011 |
CATAB v2.0f-lin.ifort 2020-Jul-12 06:35:57 |
2020-Jul-12 06:36 |
| 2153-Jul-13 00:49 |
< 00:01 |
Earth |
0.271361799446898 |
0.271361314607953 |
0.271362284285843 |
9.21495473046862 |
9.21388912718145 |
2507620.534014275 |
0.0218580219829324 |
24.1972061663085 |
5.68925924781583 |
-2.5720587325471 |
1320751.02544669 |
T |
1011 |
CATAB v2.0f-lin.ifort 2020-Jul-12 06:35:57 |
2020-Jul-12 06:36 |
| 2158-Aug-20 02:44 |
< 00:01 |
Earth |
0.375782407736531 |
0.375782007853968 |
0.375782807619116 |
12.8670271225036 |
12.8664760522158 |
2509484.614123059 |
0.0715160332439621 |
20.2662923660526 |
4.01103389364292 |
-10.5266927814036 |
2465306.31967689 |
T |
1011 |
CATAB v2.0f-lin.ifort 2020-Jul-12 06:35:57 |
2020-Jul-12 06:36 |
| 2181-Jul-21 20:30 |
< 00:01 |
Earth |
0.166471399519955 |
0.166471154183039 |
0.166471644856871 |
6.79381252912859 |
6.79145620794336 |
2517856.354399013 |
0.0242276743564125 |
12.232358546693 |
5.20167237197566 |
-0.117481963382132 |
1759486.74073121 |
T |
1011 |
CATAB v2.0f-lin.ifort 2020-Jul-12 06:35:57 |
2020-Jul-12 06:36 |
| 2186-Aug-26 02:04 |
< 00:01 |
Earth |
0.473183249648711 |
0.4731830978066 |
0.473183401490849 |
15.5926208042094 |
15.5922596697705 |
2519717.585903398 |
0.0575606390393089 |
9.37419003191886 |
3.49229955013619 |
-39.4487381371624 |
8414343.24122317 |
T |
1011 |
CATAB v2.0f-lin.ifort 2020-Jul-12 06:35:57 |
2020-Jul-12 06:36 |
|
Alternate Designations
| 1929 SH = 1957 NA = 1957 XA |
|
|
