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443 Photographica (A899 DA)
Classification: Main-belt Asteroid          SPK-ID: 2000443
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 100 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04072419272103309 3.6314e-08  
a 2.215444462702928 4.7284e-09 au
q 2.125222275441069 8.0344e-08 au
i 4.234750463124836 4.1155e-06 deg
node 175.4135060663123 4.7571e-05 deg
peri 349.1201121712476 6.6804e-05 deg
M 267.7880902469969 4.7586e-05 deg
tp 2459309.013550569780
(2021-Apr-04.51355057)
0.00015938 TDB
period 1204.452640690525
3.30
3.8559e-06
1.056e-08
d
yr
n .2988909549765347 9.5687e-10 deg/d
Q 2.305666649964788 4.9209e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2888  
   data-arc span      44181 days (120.96 yr)  
   first obs. used      1899-02-17  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46053  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:27:29  

Additional Information
 Earth MOID = 1.13172 au 
 Jupiter MOID = 2.65748 au 
 T_jup = 3.649 
[ 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 10.1   n/a MPO502157 IRAS observations used: 22
diameter diameter 25.504 km 0.562 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 19.795 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Higgins, D.; Pravec, P.; Kusnirak, P.; Hornoch, K.; Brinsfield, J.W.; Allen, B.; Warner, B.D. (2008) Minor Planet Bull. 35, 123-126.]
geometric albedo albedo 0.210   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.902   0.025 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=4.55, mean=7.11, max.=9.66) deg.
U-B UB 0.479   0.021 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=4.55, mean=7.11, max.=9.66) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B Sl   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)

443 Photographica (A899 DA)          Discovered 1899-Feb-17 by Wolf, M. and Schwassmann, A. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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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
1996-Jul-15 15:43 < 00:01 Juno 0.0208068063198037 0.0208059954244703 0.020807617215963 5.7632255175762 5.76322541612086 2450280.155099233 0.190394321449219 41.3615241615097 26.9955624733418 16.2800681320026 79099.0105470846 T 100 CATAB v2.0f-lin.ifort 2020-Feb-22 15:27:42 2020-Feb-22 15:27
2131-Oct-08 11:54 < 00:01 Juno 0.021669351025459 0.0216666516655915 0.0216720509094555 5.55939378329417 5.55939368230551 2499671.995734578 0.340759284306513 217.89119281271 26.7664734508549 52.4274786177679 96364.5485322028 T 100 CATAB v2.0f-lin.ifort 2020-Feb-22 15:27:42 2020-Feb-22 15:27

Alternate Designations
 A899 DA = 1930 YG = 1930 YJ = 1947 WC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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