Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
966 Muschi (A921 VD)
Classification: Main-belt Asteroid          SPK-ID: 2000966
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 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1306492546701768 2.5324e-08  
a 2.719050208868608 9.5368e-09 au
q 2.363808325669136 6.7385e-08 au
i 14.41172733590213 9.6157e-07 deg
node 72.40994623496228 5.5748e-06 deg
peri 177.9974258913548 8.8931e-06 deg
M 250.9936721092816 1.0465e-05 deg
tp 2459892.376442235108
(2022-Nov-08.87644223)
4.9217e-05 TDB
period 1637.661984023581
4.48
8.6159e-06
2.359e-08
d
yr
n .2198255827588512 1.1565e-09 deg/d
Q 3.074292092068081 1.0783e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3106  
   data-arc span      35876 days (98.22 yr)  
   first obs. used      1923-03-19  
   last obs. used      2021-06-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40024  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 11:47:19  

Additional Information
 Earth MOID = 1.34983 au 
 Jupiter MOID = 1.96568 au 
 T_jup = 3.302 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456656.5 (2013-Dec-30.0) TDB
Reference: JPL 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1312063677845679 2.5283e-08  
q 2.361778885573812 6.7331e-08 au
tp 2456620.658062272355
(2013-Nov-24.15806227)
4.0197e-05 TDB
node 72.45129540138977 5.578e-06 deg
peri 178.4788156519478 8.8402e-06 deg
i 14.40940824777473 9.6158e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3106  
   data-arc span      35876 days (98.22 yr)  
   first obs. used      1923-03-19  
   last obs. used      2021-06-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40024  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 11:47:19  

Additional Information
 Jupiter MOID = 1.96568 au 
 T_jup = 3.302 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.392066497160189E-16 -1.69013657133931E-15 7.163537715308332E-13 1.208359088685644E-14 9.071544459207015E-14 -2.515365799824397E-15
q -1.69013657133931E-15 4.533504478737351E-15 -1.8356050792528E-12 -3.498640380316232E-14 -2.218819103177471E-13 7.643227318515483E-15
tp 7.163537715308332E-13 -1.8356050792528E-12 1.615787187777474E-9 -1.032568753767586E-11 2.869494477765058E-10 1.823473426080142E-11
node 1.208359088685644E-14 -3.498640380316232E-14 -1.032568753767586E-11 3.111385048152367E-11 -2.971210709009552E-11 -1.936428036650484E-12
peri 9.071544459207015E-14 -2.218819103177471E-13 2.869494477765058E-10 -2.971210709009552E-11 7.814878405404715E-11 5.219108107053917E-12
i -2.515365799824397E-15 7.643227318515483E-15 1.823473426080142E-11 -1.936428036650484E-12 5.219108107053917E-12 9.246265461748043E-13

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 9.96   n/a MPO636075 IRAS observations used: 5
diameter diameter 25.509 km 0.216 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.355 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2004) Minor Planet Bull. 31, 60-61.]
[Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J.; Kaasalainen, M.; Warner, B.D.; Fauerbach, M.; et al. (2009) Astron. Astrophys. 493, 291-297.]
[Klinglesmith III, D.A.; Hanowell, J.; Risely, E.; Turk, J.; et al. (2013) Minor Planet Bull. 40, 190-193.]
geometric albedo albedo 0.323   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.867   0.012 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=9.41, mean=12.90, max.=15.99) deg.
U-B UB 0.441   0.029 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=9.41, mean=13.79, max.=15.99) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

966 Muschi (A921 VD)          Discovered 1921-Nov-09 by Baade, W. at Bergedorf
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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-23 03:08 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin