Designation                                      reference          date(UT)        R.A. (2000) Decl.        Mag.   Observer               
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     P/2019 A1 (PANSTARRS)                       MPEC2019-A101  2019 Jan. 03.62687 10 17 27.931+10 03 36.00  20.5 w (F51:Pan-STARRS 1, Haleakala), 1.8-m Ritchey-Chretien + CCD.
     P/2019 A2 (ATLAS)                           MPEC2019-A126  2019 Jan. 04.48478007 42 25.19 +11 40 41.2   18.70c (T05:ATLAS-HKO, Haleakala.), 0.5-m reflector + CCD.
     P/2019 A3 (PANSTARRS)                       MPEC2019-A166  2019 Jan. 03.26880 01 06 49.184+11 01 03.54  21.9 w (F51:Pan-STARRS 1, Haleakala), 1.8-m Ritchey-Chretien + CCD.
     P/2019 A4 (PANSTARRS)                       MPEC2019-B044  2019 Jan. 10.36534 07 36 21.791+18 24 35.82  20.6 w (F51:Pan-STARRS 1, Haleakala), 1.8-m Ritchey-Chretien + CCD.
     C/2019 A5 (PANSTARRS)                       MPEC2019-B045  2019 Jan. 13.49202 09 28 18.252-02 46 27.22  21.5 w (F51:Pan-STARRS 1, Haleakala), 1.8-m Ritchey-Chretien + CCD.
     P/2019 A6 (Lemmon-PANSTARRS)                MPEC2019-B046  2019 Jan. 07.51449 09 01 17.928-09 54 29.24  20.7 w (F51:Pan-STARRS 1, Haleakala), 1.8-m Ritchey-Chretien + CCD.
     P/2019 A7 (PANSTARRS)                       MPEC2019-B066  2019 Jan. 08.37792 08 25 17.155+10 02 51.25  20.4 w (F51:Pan-STARRS 1, Haleakala), 1.8-m Ritchey-Chretien + CCD.
     P/2019 A8 (PANSTARRS)                       MPEC2019-C020  2019 Jan. 11.63967 15 05 16.255-14 44 16.05  21.5 w (F51:Pan-STARRS 1, Haleakala), 1.8-m Ritchey-Chretien + CCD.
     C/2019 A9 (PANSTARRS)                       MPEC2019-C053  2019 Jan. 14.26637 04 58 41.909+69 41 40.89  20.3 i (F51:Pan-STARRS 1, Haleakala), 1.8-m Ritchey-Chretien + CCD.
     C/2019 B1 (Africano)                        MPEC2019-B065  2019 Jan. 19.47745 13 41 40.77 +55 35 16.9   17.8 G B. M. Africano.(703:Catalina Sky Survey), 0.68-m Schmidt + 10K CCD.
     P/2019 B2 (Groeller)                        MPEC2019-C021  2019 Jan. 26.31403 09 24 41.56 -02 44 31.9   18.0 G H. Groeller(703 Catalina Sky Survey.), 0.68-m Schmidt + 10K CCD.
     C/2019 B3 (PANSTARRS)                       MPEC2019-D041  2019 Jan. 24.58054 12 20 43.527-37 35 36.82  19.6 i (F51:Pan-STARRS 1, Haleakala), 1.8-m Ritchey-Chretien + CCD.
     A/2019 C1                                   MPEC2019-D042  2019 Feb. 05.45997608 39 48.24 -23 02 23.3   17.75o (T08:ATLAS-MLO, Mauna Loa. ), 0.5-m reflector + CCD.
r 377P/2003 L1 = 2019 E1 (Scotti)                MPEC2019-E080  2019 Mar. 09.10987 11 35 12.12 -06 40 13.0   20.3 G  D. Abreu (J04:ESA Optical Ground Station, Tenerife.) 1.0-m f/4.4 reflector + CCD.
r 378P/2005 Y2 = 2019 E2 (McNaught)              MPEC2019-F027  2019 Mar. 10.13626 14 25 00.39 +08 33 47.8   21.9 G  E. Schwab (J04:ESA Optical Ground Station, Tenerife.) 1.0-m f/4.4 reflector + CCD.
     C/2019 E3 (ATLAS)                           MPEC2019-F054  2019 Mar. 05.42678010 14 03.12 -37 05 03.2   18.45o (T08:ATLAS-MLO, Mauna Loa. ), 0.5-m reflector + CCD.
     C/2019 D1 (Flewelling)                      MPEC2019-F053  2019 Feb. 26.64502918 38 18.96 -11 49 12.0   16.75o H. Flewelling (T08:ATLAS-MLO, Mauna Loa. ), 0.5-m reflector + CCD.
r 379P/2006 F4 = 2019 D2 (Spacewatch)            MPEC2019-G021  2019 Feb. 28.38006 11 33 44.63 -02 54 37.9   20.1 G R. Weryk (F51:Pan-STARRS 1, Haleakala), 1.8-m Ritchey-Chretien + CCD.
     C/2019 F1 (ATLAS-Africano)                  MPEC2019-G124  2019 Mar. 29.41900 14 12 40.39 +08 14 02.8   18.4 G B. M. Africano (G96:Mt. Lemmon Survey.), 1.5-m reflector + 10K CCD.
     C/2019 F2 (ATLAS)                           MPEC2019-H029  2019 Mar. 26.30690207 21 22.57 +05 45 22.0   17.58o (T08:ATLAS-MLO, Mauna Loa), 0.5-m reflector + CCD.
  380P/2019 G1 = 2011 O2 (PANSTARRS)             MPEC2019-G123  2019 Apr. 03.50620 14 33 34.944-02 57 02.97  19.9 w (F51:Pan-STARRS 1, Haleakala), 1.8-m Ritchey-Chretien + CCD.
     A/2019 G2                                   MPEC2019-H030  2019 Apr. 02.44043 13 29 10.279-04 26 38.73  21.3 w (F51:Pan-STARRS 1, Haleakala), 1.8-m Ritchey-Chretien + CCD.
     A/2019 G3                                   MPEC2019-H031  2019 Apr. 04.49046 14 49 04.233-24 17 53.19  21.6 w (F51:Pan-STARRS 1, Haleakala), 1.8-m Ritchey-Chretien + CCD.
     A/2019 G4                                   MPEC2019-H032  2019 Apr. 09.24593 10 17 02.377-29 14 36.65  21.4 w (F51:Pan-STARRS 1, Haleakala), 1.8-m Ritchey-Chretien + CCD.
     P/2019 GG21 (PANSTARRS)                     MPEC2019-H044  2019 Apr. 04.39692 11 54 07.913-02 47 07.49  21.0 w (F51:Pan-STARRS 1, Haleakala), 1.8-m Ritchey-Chretien + CCD.
     C/2019 H1 (NEOWISE)                         MPEC2019-J024  2019 Apr. 18.88400 19 53 10.06 -04 11 27.2   18   R (C51:WISE)
     C/2019 J1 (Lemmon)                          MPEC2019-J122  2018 May  04.44780 19 58 51.97 -18 53 16.3   17.4 G (G96:Mt. Lemmon Survey. ), 1.5-m reflector + 10K CCD.
     C/2019 J2 (Palomar)                         MPEC2019-J123  2018 May  09.47377300 11 51.95 +45 12 43.6   16.86r (I41:Mt. Palomar Mountain--ZTF.), 1.2-m f/2.4 Oschin Schmidt.
     C/2019 J3 (ATLAS)                           MPEC2019-K014  2019 May  14.54253520 23 52.92 -31 36 37.3   18.73o (T05:ATLAS-HKO, Haleakala.), 0.5-m reflector + CCD.
     C/2019 JU6 (ATLAS)                          MPEC2019-K018  2019 May  12.57373521 24 54.26 +20 28 23.7   18.82o (T05:ATLAS-HKO, Haleakala.), 0.5-m reflector + CCD.
     C/2019 K1 (ATLAS)                           MPEC2019-K013  2019 May  16.48248317 16 29.89 -24 33 15.3   17.18o (T08:ATLAS-MLO, Mauna Loa), 0.5-m reflector + CCD.
r    P/2000 S4 = P/2019 K2 (LINEAR-Spacewatch)   MPEC2019-L011  2019 May  29.57499 21 49 39.576+11 59 02.49  21.6 w (F51:Pan-STARRS 1, Haleakala), 1.8-m Ritchey-Chretien + CCD.
r    P/2007 R1 = P/2019 K3 (Larson)              MPEC2019-L042  2019 May  31.45154 16 41 08.967-13 23 24.69  22.0 w (F51:Pan-STARRS 1, Haleakala), 1.8-m Ritchey-Chretien + CCD.
     C/2019 K4 (Ye)                              MPEC2019-M070  2019 May  30.46046301 13 24.87 +45 07 57.0   17.14r Q.-Z. Ye (I41:Palomar Mountain--ZTF.), 1.2-m f/2.4 Oschin Schmidt.
     C/2019 K5 (Young)                           MPEC2019-M086  2019 May  25.59037100 09 43.68 +05 34 19.9   17.10o D. Young (T08:ATLAS-MLO, Mauna Loa.), 0.5-m reflector + CCD.
     A/2019 K6                                   MPEC2019-N010  2019 May  31.55619 17 31 08.374+16 32 19.90  21.1 w (F52:Pan-STARRS 2, Haleakala), 1.8-m Ritchey-Chretien + CCD.
     C/2019 K7 (Smith)                           MPEC2019-N012  2019 May  30.56534 22 23 48.17 -34 43 04.0   17.7 c K. Smith (T05 :TLAS-HKO, Haleakala),  0.5-m reflector + CCD.
     C/2019 K8 (ATLAS)                           MPEC2019-N013  2019 May  27.56612019 41 51.61 +63 02 46.2   17.94o (T08:ATLAS-MLO, Mauna Loa.), 0.5-m reflector + CCD.
     C/2019 L1 (PANSTARRS)                       MPEC2019-M077  2019 June 12.52773 20 07 38.538-12 07 02.73  20.1 w (F52:Pan-STARRS 2, Haleakala), 1.8-m Ritchey-Chretien + CCD.
     C/2019 L2 (NEOWISE)                         MPEC2019-M093  2019 June 11.78358 22 38 00.69 +23 02 30.0   18   R (C51:WISE)
     C/2019 L3 (ATLAS)                           MPEC2019-N011  2019 June 10.56200122 50 05.84 +41 52 31.3   18.18o (T05:TLAS-HKO, Haleakala), 0.5-m reflector + CCD.
     C/2019 LB7 (Kleyna)                         MPEC2019-N032  2019 June 07.59119101 19 14.221+08 28 20.28  23.4 G J. Kleyna,(568 Mauna Kea), 8.2-m Subaru Telescope + CCD, 3.6-m Canada-France-Hawaii Telescope + CCD.
r    P/2006 S1 = P/2019 M1 (Christensen)         MPEC2019-N062  2019 June 25.89686 17 31 40.73 -01 04 57.8   19.9 T K. Sarneczky,(461 University of Szeged, Piszkesteto Stn. (Konkoly)), 0.60-m Schmidt + CCD.
     C/2019 M2 (ATLAS)                           MPEC2019-O008  2019 June 29.58115800 31 40.48 -18 25 30.9   18.36o (T08:ATLAS-MLO, Mauna Loa.), 0.5-m reflector + CCD.
     C/2019 M3 (ATLAS)                           MPEC2019-O023  2019 June 30.51712523 08 03.29 +37 16 02.4   19.39c (T05:TLAS-HKO, Haleakala), 0.5-m reflector + CCD.
     C/2019 N1 (ATLAS)                           MPEC2019-N160  2019 July 05.54128721 51 50.51 +82 15 31.4   18.68o (T08:ATLAS-MLO, Mauna Loa.), 0.5-m reflector + CCD.
r    P/2010 U2 = P/2019 P1 (Hill)                MPEC2019-P061  2019 Aug. 02.05151 03 03 18.97 +26 26 36.7   20.4 T K. Sarneczky,(461 University of Szeged, Piszkesteto Stn. (Konkoly)), 0.60-m Schmidt + CCD.
inserted by FC2 system