Orbital elements:
    P/2019 X1 (Pruyne)                                                          
T 2019 July 30.29779 TT                                 Rudenko                 
q   4.3258180            (2000.0)            P               Q                  
n   0.06461257     Peri.   37.79926     +0.14941549     -0.98095937             
a   6.1507022      Node    44.00415     +0.85806624     +0.06628804             
e   0.2966953      Incl.   10.28791     +0.49132203     +0.18255032             
P  15.3                                                                         
From 74 observations 2019 Nov. 29-Dec. 10.                                      
                                                                                
Ephemeris:
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase   m1    m2
2019 11 10    07 11 44.7 +31 40 57   3.7545  4.3504   121.2    11.2  19.7
...
2019 11 25    07 09 51.6 +32 25 54   3.5904  4.3580   136.3     9.0  19.6
...
2019 12 03    07 07 14.3 +32 50 24   3.5213  4.3625   144.6     7.5  19.5
...
2019 12 09    07 04 37.1 +33 08 12   3.4795  4.3661   150.8     6.3  19.5
2019 12 10    07 04 07.9 +33 11 05   3.4735  4.3667   151.9     6.1  19.5
2019 12 11    07 03 38.0 +33 13 56   3.4677  4.3673   152.9     5.9  19.5
...
2019 12 17    07 00 23.5 +33 30 14   3.4388  4.3711   158.9     4.7  19.5
...
2019 12 25    06 55 31.8 +33 49 17   3.4162  4.3764   165.8     3.2  19.5
...
2020 01 09    06 45 44.2 +34 13 47   3.4260  4.3870   166.1     3.1  19.5

K87 Dettelbach Vineyard Observatory.  Observer B. Haeusler.  0.30-m 
   Schmidt-Cassegrain + CCD, 0.3-m f/5.7 Schmidt-Cassegrain + CCD.