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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2071987011077538 5.6858e-08  
a 2.695121569548736 1.5893e-08 AU
q 2.136695881010747 1.5256e-07 AU
i 33.84405530038728 6.9268e-06 deg
node 140.9352174139787 1.0735e-05 deg
peri 63.64036103939761 1.646e-05 deg
M 140.4909989674621 1.3523e-05 deg
tp 2456369.815777828354
(2013-Mar-18.31577783)
5.9777e-05 JED
period 1616.091576332068
4.42
1.4295e-05
3.914e-08
d
yr
n .2227596537673114 1.9704e-09 deg/d
Q 3.253547258086726 1.9186e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      911  
   data-arc span      29822 days (81.65 yr)  
   first obs. used      1933-03-28  
   last obs. used      2014-11-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50638  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-07 23:50:24  

Additional Information
 Earth MOID = 1.27737 AU 
 T_jup = 3.100 
[ 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. 2015-May); 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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