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554 Peraga (A905 AE)
Classification: Main-belt Asteroid          SPK-ID: 2000554
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 116 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1518934345938223 1.7226e-08  
a 2.375497326265954 3.7253e-09 au
q 2.014674878510976 4.0294e-08 au
i 2.935283623416948 8.4991e-07 deg
node 295.3938059927668 1.5598e-05 deg
peri 127.54015374 1.5093e-05 deg
M 286.3260613045562 7.7792e-06 deg
tp 2459474.179100242655
(2021-Sep-16.67910024)
2.9245e-05 TDB
period 1337.304314550634
3.66
3.1458e-06
8.613e-09
d
yr
n .269198264062259 6.3324e-10 deg/d
Q 2.736319774020931 4.2911e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3173  
   data-arc span      45402 days (124.30 yr)  
   first obs. used      1896-09-07  
   last obs. used      2020-12-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46288  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 11:04:22  

Additional Information
 Earth MOID = 1.02886 au 
 Jupiter MOID = 2.56243 au 
 T_jup = 3.524 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455455.5 (2010-Sep-16.0) TDB
Reference: JPL 116 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .152769749974935 1.7342e-08  
q 2.01176527637108 4.0681e-08 au
tp 2455462.158869290119
(2010-Sep-22.65886929)
2.5553e-05 TDB
node 295.4961587539916 1.5606e-05 deg
peri 127.16508992281 1.511e-05 deg
i 2.935837251848503 8.5025e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3173  
   data-arc span      45402 days (124.30 yr)  
   first obs. used      1896-09-07  
   last obs. used      2020-12-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46288  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 11:04:22  

Additional Information
 Jupiter MOID = 2.56243 au 
 T_jup = 3.524 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.007380854220486E-16 -7.035615609702399E-16 3.015624335962574E-13 -3.942356076562327E-14 1.035360314397369E-13 1.315043723206666E-15
q -7.035615609702399E-16 1.654979615406891E-15 -6.969142730290983E-13 9.892387910720603E-14 -2.444389563759133E-13 -3.297463105843013E-15
tp 3.015624335962574E-13 -6.969142730290983E-13 6.529584891290847E-10 1.030249723182378E-10 5.007492710553023E-11 3.217534789502186E-12
node -3.942356076562327E-14 9.892387910720603E-14 1.030249723182378E-10 2.43535388451128E-10 -2.171742650752711E-10 -5.444989867541129E-12
peri 1.035360314397369E-13 -2.444389563759133E-13 5.007492710553023E-11 -2.171742650752711E-10 2.283134409247775E-10 6.510476192929547E-12
i 1.315043723206666E-15 -3.297463105843013E-15 3.217534789502186E-12 -5.444989867541129E-12 6.510476192929547E-12 7.229189889811096E-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 9.12   n/a E2021B10  
diameter diameter 95.87 km 4.1 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 37
rotation period rot_per 13.7128 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Scaltriti, F.; Zappala, V. (1979) Icarus 39, 124-130.]
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Higgins, D.; Warner, B.D.; Dymock, R.; Crow, M. (2007) Minor Planet Bull. 34, 30.]
[Stephens, R.D. (2007) Minor Planet Bull. 34, 31-32.]
geometric albedo albedo 0.0496   0.005 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 37
B-V BV 0.676   0.052 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=3.99, mean=10.80, max.=23.68) deg.
U-B UB 0.342   0.039 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=3.99, mean=10.80, max.=23.68) deg.
Tholen spectral type spec_T FC   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B Ch   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)

554 Peraga (A905 AE)          Discovered 1905-Jan-08 by Gotz, P. 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
2078-Jul-01 22:31 00:02 Hygie 0.0202380179248716 0.0202375224695518 0.0202385133878555 2.46819886520766 2.46819809171825 2480216.438385201 2.2206218236447 41.708463828096 20.026855965956 -67.0288901784702 141373.539046668 T 116 CATAB v2.0f-lin.ifort 2021-Apr-12 11:06:06 2021-Apr-12 11:06

Alternate Designations
 A905 AE = A896 RB = A900 UC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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