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648 Pippa (A907 RN)
Classification: Outer Main-belt Asteroid          SPK-ID: 2000648
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1956314700219388 3.6992e-08  
a 3.214273150621594 1.6778e-08 au
q 2.585460169113443 1.2204e-07 au
i 9.836384196294631 4.2224e-06 deg
node 290.9148180296045 2.4252e-05 deg
peri 179.3521770313646 2.6393e-05 deg
M 138.06803930775 1.0236e-05 deg
tp 2457793.240332925108
(2017-Feb-08.74033293)
6.0025e-05 TDB
period 2104.857008211663
5.76
1.648e-05
4.512e-08
d
yr
n .1710329958736078 1.3391e-09 deg/d
Q 3.843086132129745 2.006e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2225  
   data-arc span      40952 days (112.12 yr)  
   first obs. used      1907-09-11  
   last obs. used      2019-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43123  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 01:55:36  

Additional Information
 Earth MOID = 1.60238 au 
 Jupiter MOID = 1.30154 au 
 T_jup = 3.138 
[ 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 9.68   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 12
diameter diameter 68.27 km 1.6 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 12
rotation period rot_per 9.263 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Moravec, P.; Cochren, J.; Gerhardt, M.; Harris, A.; et al. (2012) Minor Planet Bull. 39, 213-216.]
[Behrend, R. (2015) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.0509   0.002 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 12
B-V BV 0.676   0.030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=6.44, mean=11.49, max.=16.54) deg.
U-B UB 0.278   0.046 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=6.44, mean=11.49, max.=16.54) deg.
Tholen spectral type spec_T XC   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

648 Pippa (A907 RN)          Discovered 1907-Sep-11 by Kopff, A. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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