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824 Anastasia (1916 ZH)
Classification: Main-belt Asteroid          SPK-ID: 2000824
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1366742822982524 3.8599e-08  
a 2.792611535014426 1.4323e-08 AU
q 2.410933357728508 1.1156e-07 AU
i 8.126062307879003 5.0858e-06 deg
node 141.4043066742696 2.9873e-05 deg
peri 142.1147638832803 3.3724e-05 deg
M 318.4016956573286 1.702e-05 deg
tp 2457197.464222221668
(2015-Jun-23.96422222)
8.1111e-05 JED
period 1704.567556785338
4.67
1.3114e-05
3.59e-08
d
yr
n .211197261479579 1.6249e-09 deg/d
Q 3.174289712300344 1.6281e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1581  
   data-arc span      37174 days (101.78 yr)  
   first obs. used      1913-10-26  
   last obs. used      2015-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52343  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 13:58:21  

Additional Information
 Earth MOID = 1.40196 AU 
 T_jup = 3.300 
[ 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 10.41 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 11
diameter diameter 34.14 km 5.1 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 11
rotation period rot_per 250. h n/a LCDB (Rev. 2015-July); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2010) Minor Planet Bul. 37, 159-161.]
geometric albedo albedo 0.1039   0.040 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 11
B-V BV .848 mag .040 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=2; phase (min.=4.51, mean=4.52, max.=4.52) deg.
U-B UB .410 mag .030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=1; phase=4.52 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices
SMASSII spectral type spec_B L   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)

824 Anastasia (1916 ZH)          Discovered 1916-Mar-25 by Neujmin, G. at Simeis
Independent discovery Apr. 1 by M. Wolf, Heidelberg, was announced first.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1916 ZH = 1948 BB = 1950 RR1 = A913 TB 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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