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1252 Celestia (1933 DG)
Classification: Main-belt Asteroid          SPK-ID: 2001252
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2076855052704928 5.3122e-08  
a 2.694049451204445 1.4173e-08 au
q 2.134534429707356 1.4298e-07 au
i 33.8444628147824 6.0416e-06 deg
node 140.9307583685353 1.0001e-05 deg
peri 63.67518312403191 1.491e-05 deg
M 274.1650342429853 1.3655e-05 deg
tp 2457985.595558035954
(2017-Aug-20.09555804)
6.2515e-05 JED
period 1615.127351310368
4.42
1.2745e-05
3.489e-08
d
yr
n .2228926404521159 1.7589e-09 deg/d
Q 3.253564472701534 1.7117e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1122  
   data-arc span      30297 days (82.95 yr)  
   first obs. used      1933-03-28  
   last obs. used      2016-03-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50891  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 15:29:44  

Additional Information
 Earth MOID = 1.2739 au 
 Jupiter MOID = 2.07743 au 
 T_jup = 3.101 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.89 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2
diameter diameter 17.39 km 1.6 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2
rotation period rot_per 10.636 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Published Reference List:
[Worman, W.E. (1995) Minor Planet Bul. 22, 39-40.]
geometric albedo albedo 0.2573   0.053 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2
B-V BV .890 mag .008 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=2; phase (min.=13.95, mean=13.97, max.=13.99) deg.
U-B UB .425 mag .035 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=2; phase (min.=13.95, mean=13.97, max.=13.99) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices; used ground-based radiometric albedo
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)

1252 Celestia (1933 DG)          Discovered 1933-Feb-19 by Whipple, F. L. at Harvard
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1933 DG = 1934 PA1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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