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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 96 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04080051028194505 3.6406e-08  
a 2.215192327469483 4.8421e-09 au
q 2.124811350136078 8.0537e-08 au
i 4.234976595818243 4.1235e-06 deg
node 175.4174328543631 4.8792e-05 deg
peri 349.4168905250909 6.8226e-05 deg
M 147.9031239905521 4.8137e-05 deg
tp 2458105.744727497831
(2017-Dec-18.24472750)
0.00016083 TDB
period 1204.247032078636
3.30
3.9485e-06
1.081e-08
d
yr
n .2989419864947546 9.8016e-10 deg/d
Q 2.305573304802887 5.0396e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2721  
   data-arc span      44085 days (120.70 yr)  
   first obs. used      1899-02-17  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47464  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 01:53:31  

Additional Information
 Earth MOID = 1.13169 au 
 Jupiter MOID = 2.65876 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 10.28   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 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-January); 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

[ 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
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 96 CATAB v2.0f-lin.ifort 2019-Nov-07 01:53:40 2019-Nov-07 01:53
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 96 CATAB v2.0f-lin.ifort 2019-Nov-07 01:53:40 2019-Nov-07 01:53

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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