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574 Reginhild (A905 SH)
Classification: Main-belt Asteroid          SPK-ID: 2000574
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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2384252255437203 2.8225e-08  
a 2.252695373159063 4.1373e-09 au
q 1.715595970732319 6.3774e-08 au
i 5.685068799941649 3.7172e-06 deg
node 336.651919410026 3.1713e-05 deg
peri 77.11490326742093 3.3007e-05 deg
M 355.8486916833958 7.5269e-06 deg
tp 2459214.740807509218
(2020-Dec-31.24080751)
2.5819e-05 TDB
period 1234.957828309936
3.38
3.4022e-06
9.315e-09
d
yr
n .2915079298640238 8.0307e-10 deg/d
Q 2.789794775585808 5.1237e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2494  
   data-arc span      42132 days (115.35 yr)  
   first obs. used      1905-09-19  
   last obs. used      2021-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36313  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:47:52  

Additional Information
 Earth MOID = .73671 au 
 Jupiter MOID = 2.61222 au 
 T_jup = 3.582 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456870.5 (2014-Aug-01.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2395112178810764 2.8383e-08  
q 1.71332108724588 6.4224e-08 au
tp 2456744.199033400930
(2014-Mar-27.69903340)
2.6295e-05 TDB
node 336.8148310877987 3.1743e-05 deg
peri 76.85220753998672 3.3e-05 deg
i 5.683184811361391 3.7166e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2494  
   data-arc span      42132 days (115.35 yr)  
   first obs. used      1905-09-19  
   last obs. used      2021-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36313  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:47:52  

Additional Information
 Jupiter MOID = 2.61222 au 
 T_jup = 3.582 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.056162433511361E-16 -1.820696466701499E-15 -2.490403188519965E-13 7.894241453497085E-15 -9.133280800532917E-14 -1.221689496390855E-15
q -1.820696466701499E-15 4.124696961064922E-15 5.384680190656807E-13 -1.761661660746985E-14 1.987736350448915E-13 2.914076585657823E-15
tp -2.490403188519965E-13 5.384680190656807E-13 6.9142648269709E-10 -1.179451916301331E-11 2.444864112128357E-10 5.733888485709902E-13
node 7.894241453497085E-15 -1.761661660746985E-14 -1.179451916301331E-11 1.007592170621107E-9 -1.006019401012994E-9 2.777246661547822E-11
peri -9.133280800532917E-14 1.987736350448915E-13 2.444864112128357E-10 -1.006019401012994E-9 1.088985798620746E-9 -2.747869541342712E-11
i -1.221689496390855E-15 2.914076585657823E-15 5.733888485709902E-13 2.777246661547822E-11 -2.747869541342712E-11 1.381317132720001E-11

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 12.40   n/a E2021B10 IRAS observations used: 4
diameter diameter 8.456 km 0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 14.339 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pilcher, F. (2011) Minor Planet Bull. 38, 76-78.]
geometric albedo albedo 0.298   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a medium resolution spectrum published by Chapman and Gaffey (1979)

574 Reginhild (A905 SH)          Discovered 1905-Sep-19 by Wolf, M. at Heidelberg
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
2006-Jan-04 12:48 00:01 Amphi 0.0284821349423987 0.0284815117316476 0.0284827581532522 1.99751160321154 1.99751150216739 2453740.033649073 1.31462477049371 51.5490613189188 30.9461880861095 -87.2232715940142 137300.879620481 T 39 CATAB v2.0f-lin.ifort 2021-Feb-24 00:47:58 2021-Feb-24 00:47

Alternate Designations
 A905 SH = 1947 BB = A912 YB = A922 TB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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