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1255 Schilowa (1932 NC)
Classification: Main-belt Asteroid          SPK-ID: 2001255
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1741786323998322 1.9796e-08  
a 3.142235023404967 1.1171e-08 au
q 2.594924824349435 6.5996e-08 au
i 8.548602818214659 6.7147e-07 deg
node 237.6132277282719 4.8801e-06 deg
peri 133.3928648835641 5.9805e-06 deg
M 263.8432085625626 5.8927e-06 deg
tp 2459939.917833772598
(2022-Dec-26.41783377)
3.4873e-05 TDB
period 2034.494051160375
5.57
1.0849e-05
2.97e-08
d
yr
n .1769481703791042 9.4359e-10 deg/d
Q 3.689545222460499 1.3117e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3549  
   data-arc span      42293 days (115.79 yr)  
   first obs. used      1905-10-24  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41099  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 07:29:17  

Additional Information
 Earth MOID = 1.604 au 
 Jupiter MOID = 1.84838 au 
 T_jup = 3.169 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.41   n/a MPCxxxxx  
diameter diameter 33.669 km 0.718 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 29.536 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
geometric albedo albedo 0.130   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1255 Schilowa (1932 NC)          Discovered 1932-Jul-08 by Neujmin, G. at Simeis
Reference: DISCOVERY.DBLast 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
1959-Jun-14 13:35 < 00:01 Jupiter 1.96660920627969 1.96660892329235 1.96660948926748 3.58305724918191 3.46076512613483 2436734.065777449 0.973480539873433 59.4430728054933 5.82821577526917 -80.3417148529475 14572338.3897439 T 44 CATAB v2.0g-lin.ifort 2021-Aug-25 07:30:23 2021-Aug-25 07:30
1970-Jan-25 08:37 < 00:01 Jupiter 1.88149555763267 1.88149539269601 1.88149572256932 2.69828191654875 2.52593621799286 2440611.858827947 0.793920536505006 51.3654679684905 6.49873935069586 83.9935336855579 10254023.2015524 T 44 CATAB v2.0g-lin.ifort 2021-Aug-25 07:30:23 2021-Aug-25 07:30
1980-Aug-08 11:30 < 00:01 Jupiter 1.95324994585753 1.95324975660441 1.95325013511065 2.06491527403682 1.84298115031806 2444459.979256832 0.630333009374314 26.774984122996 3.54059971756791 82.5935655999969 5867749.12128002 T 44 CATAB v2.0g-lin.ifort 2021-Aug-25 07:30:23 2021-Aug-25 07:30
2065-Jul-05 04:13 < 00:01 Jupiter 1.88167218877552 1.88167201069867 1.88167236685259 3.07385893103153 2.92375130975075 2475471.675562422 0.808251727646835 57.4863377237148 6.17675700703996 -89.1668528203041 12831182.6574557 T 44 CATAB v2.0g-lin.ifort 2021-Aug-25 07:30:23 2021-Aug-25 07:30
2076-Feb-04 09:35 00:01 Jupiter 1.91331286087875 1.91331264933511 1.91331307242249 2.29333094031768 2.09140334313885 2479337.899417605 1.09260841678051 55.3267214921895 6.78008949259633 71.9244017731691 8417006.71699753 T 44 CATAB v2.0g-lin.ifort 2021-Aug-25 07:30:23 2021-Aug-25 07:30
2160-Dec-10 16:46 00:02 Jupiter 1.90479669516373 1.90479617540535 1.90479721492633 3.353137011058 3.21778967962771 2510328.198779476 2.36220006445145 153.240151138071 6.11506687899877 -83.1050229955448 13365884.4956765 T 44 CATAB v2.0g-lin.ifort 2021-Aug-25 07:30:23 2021-Aug-25 07:30
2171-Jul-24 23:32 00:03 Jupiter 1.86803498865029 1.86803470404019 1.86803527326389 2.64742606644622 2.47022375768251 2514206.480541921 2.65293654642247 171.406188467159 7.22544868689858 80.4566338587797 10152948.6459358 T 44 CATAB v2.0g-lin.ifort 2021-Aug-25 07:30:23 2021-Aug-25 07:30

Alternate Designations
 1932 NC = 1933 VB = A905 UC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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