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147 Protogeneia (A875 NA)
Classification: Main-belt Asteroid          SPK-ID: 2000147
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 60 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02326939296456578 1.4305e-08  
a 3.134497018489359 9.8533e-09 au
q 3.061559175619871 4.2382e-08 au
i 1.933326780106844 1.0761e-06 deg
node 248.2530323466884 3.5836e-05 deg
peri 100.9416275135019 6.2441e-05 deg
M 16.40583295168363 5.4885e-05 deg
tp 2459108.126796998426
(2020-Sep-15.62679700)
0.00030916 TDB
period 2026.983523390924
5.55
9.5577e-06
2.617e-08
d
yr
n .1776038116963866 8.3744e-10 deg/d
Q 3.207434861358848 1.0083e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3711  
   data-arc span      53101 days (145.38 yr)  
   first obs. used      1875-09-25  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4231  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 10:21:54  

Additional Information
 Earth MOID = 2.05303 au 
 Jupiter MOID = 1.89207 au 
 T_jup = 3.211 
[ 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 8.80   n/a E2021B10  
diameter diameter 132.93 km 5.1 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 11
rotation period rot_per 7.8528 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Buchheim, R.K. (2005) Minor Planet Bull. 32, 35-36.]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
geometric albedo albedo 0.0492   0.004 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 11
B-V BV 0.678   0.023 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=1.00, mean=2.06, max.=3.43) deg.
U-B UB 0.293   0.028 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=1.00, mean=2.22, max.=3.43) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B C   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)

147 Protogeneia (A875 NA)          Discovered 1875-Jul-10 by Schulhof, L. at Vienna
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1904-May-18 20:14 00:02 Jupiter 1.93722898714352 1.93722884901341 1.93722912527364 3.74254320830685 3.62383243674374 2416619.343173641 1.63556287838432 78.8721731832316 5.5559238796482 -89.6741804404774 11043871.678381 T 60 CATAB v2.0f-lin.ifort 2021-Apr-12 10:23:15 2021-Apr-12 10:23
1914-Oct-13 17:50 00:01 Jupiter 1.99683874943402 1.99683848944915 1.99683900941923 3.85022925403339 3.73843574944884 2420419.243374794 1.45496319511775 51.256247532088 5.91055725602566 -78.9739452063439 10425885.2981467 T 60 CATAB v2.0f-lin.ifort 2021-Apr-12 10:23:15 2021-Apr-12 10:23
1988-Jan-09 16:30 < 00:01 Jupiter 1.93762073928698 1.9376205655057 1.93762091306825 3.76401772442574 3.6460304572382 2447170.187730787 0.3791013267892 18.4746692525773 6.64832200385667 81.0500278004867 9812932.30946223 T 60 CATAB v2.0f-lin.ifort 2021-Apr-12 10:23:15 2021-Apr-12 10:23
1998-Jun-04 06:45 < 00:01 Jupiter 1.96584749457358 1.96584736973503 1.96584761941212 3.78940485373466 3.6739422127417 2450968.781331184 0.226501426825431 14.4354329431227 4.94625572282114 -87.8611715265629 11546903.0193077 T 60 CATAB v2.0f-lin.ifort 2021-Apr-12 10:23:15 2021-Apr-12 10:23
2071-Sep-01 12:52 < 00:01 Jupiter 1.95353355468419 1.95353337207943 1.95353373728895 3.80588955681374 3.69020672345253 2477721.035931671 0.877006393179415 31.6066620345794 7.55015985218634 -89.498526371036 8857399.69440574 T 60 CATAB v2.0f-lin.ifort 2021-Apr-12 10:23:15 2021-Apr-12 10:23
2082-Jan-26 10:08 00:01 Jupiter 1.94127367238585 1.94127354212564 1.94127380264607 3.751749202449 3.63358994861915 2481520.922046454 1.03732200420197 49.74334784285 5.03788566306019 -87.6900977955929 12191318.7178706 T 60 CATAB v2.0f-lin.ifort 2021-Apr-12 10:23:15 2021-Apr-12 10:23
2155-Apr-24 00:56 00:02 Jupiter 1.99152788687724 1.99152762433767 1.99152814941704 3.86251264192208 3.75078366462711 2508270.538906366 2.10519978388709 55.7026070202899 8.52758991437334 80.9586115714013 8264766.15778254 T 60 CATAB v2.0f-lin.ifort 2021-Apr-12 10:23:15 2021-Apr-12 10:23
2165-Sep-20 02:15 00:02 Jupiter 1.93841216854713 1.93841202226396 1.93841231483031 3.77197417982916 3.65429265942798 2512072.594084369 2.28878360768124 103.256210823067 5.94591347539591 -89.3031748202035 11069572.2524688 T 60 CATAB v2.0f-lin.ifort 2021-Apr-12 10:23:15 2021-Apr-12 10:23
2176-Feb-14 09:53 00:02 Jupiter 1.98188756299042 1.9818873094321 1.98188781655021 3.82236068398986 3.70886475392931 2515871.911869386 2.43554035525097 102.095008887843 5.3734903738676 -84.0596920837168 11328849.2971147 T 60 CATAB v2.0f-lin.ifort 2021-Apr-12 10:23:15 2021-Apr-12 10:23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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