메타데이터
| 항목 |
값 |
| Designation |
C/2019 J3 (ATLAS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2019-08-01T21:21:25.338240Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:33:54Z |
| Obs used |
270 |
| NEO |
- |
| M1 |
15.300 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2019-05-14T13:01:15.024000Z |
| Discovery magnitude (MPC) |
18.73 o |
| Discovery observatory (MPC) |
T05 · ATLAS-HKO, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2019-07-10.0000000 |
| e |
1.00067795 |
| q (au) |
2.373522 |
| a (au) |
-3501.039615 |
| i (deg) |
131.414908 |
| Ω (om, deg) |
270.517035 |
| ω (w, deg) |
16.552399 |
| M (ma, deg) |
-0.000109 |
밝기
산란 + 전체 선형
$$
M_a = (14.286 + 2.429\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
14.286 |
| n |
2.429 |
| gf |
0.947 |
| gb |
-0.898 |
| k |
0.999 |
| δ90 |
1.000 |
| 파라미터 |
기호 |
범위 |
설명 |
| 태양·지구거리 1 AU에서의 절대등급 |
H0 |
-5 to 20 |
혜성의 고유 밝기 |
| 광도 기울기 파라미터 |
n |
2 to 6 |
태양거리 변화에 따른 밝기 변화율 |
| 전방 산란 비대칭 계수 |
gf |
0.8 to 1 |
전방 산란의 강도 |
| 후방 산란 비대칭 계수 |
gb |
-1 to -0.5 |
후방 산란의 강도 |
| 분할 계수 |
k |
0.8 to 1 |
전·후방 산란 기여도 비율 |
| 먼지/가스 밝기 비 |
δ90 |
1 to 10 |
코마에서 먼지 산란 대비 가스 방출의 상대 기여 |
참고: EPSC-DPS2025-160
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-03-26 00:00 |
07:18:20.19 |
+42:01:38.5 |
HIP 35382 |
9.55 |
| 2026-03-26 12:00 |
07:18:17.35 |
+42:01:00.3 |
HIP 35382 |
9.06 |
| 2026-03-27 00:00 |
07:18:14.59 |
+42:00:22.0 |
HIP 35382 |
8.62 |
| 2026-03-27 12:00 |
07:18:11.91 |
+41:59:43.6 |
HIP 35382 |
8.23 |
| 2026-03-28 00:00 |
07:18:09.30 |
+41:59:05.0 |
HIP 35382 |
7.89 |
| 2026-03-28 12:00 |
07:18:06.78 |
+41:58:26.3 |
HIP 35382 |
7.61 |
| 2026-03-29 00:00 |
07:18:04.34 |
+41:57:47.5 |
HIP 35382 |
7.40 |
| 2026-03-29 12:00 |
07:18:01.97 |
+41:57:08.6 |
HIP 35382 |
7.25 |
| 2026-03-30 00:00 |
07:17:59.69 |
+41:56:29.6 |
HIP 35382 |
7.18 |
| 2026-03-30 12:00 |
07:17:57.48 |
+41:55:50.5 |
HIP 35382 |
7.17 |
| 2026-03-31 00:00 |
07:17:55.35 |
+41:55:11.2 |
HIP 35382 |
7.23 |
| 2026-03-31 12:00 |
07:17:53.30 |
+41:54:31.9 |
HIP 35382 |
7.36 |
| 2026-04-01 00:00 |
07:17:51.33 |
+41:53:52.5 |
HIP 35382 |
7.55 |
| 2026-04-01 12:00 |
07:17:49.44 |
+41:53:13.0 |
HIP 35382 |
7.79 |
| 2026-04-02 00:00 |
07:17:47.63 |
+41:52:33.4 |
HIP 35382 |
8.08 |
| 2026-04-02 12:00 |
07:17:45.89 |
+41:51:53.6 |
HIP 35382 |
8.41 |
| 2026-04-03 00:00 |
07:17:44.23 |
+41:51:13.9 |
HIP 35382 |
8.77 |
| 2026-04-03 12:00 |
07:17:42.65 |
+41:50:34.0 |
HIP 35382 |
9.17 |
| 2026-04-04 00:00 |
07:17:41.15 |
+41:49:54.0 |
HIP 35382 |
9.59 |
| 2026-04-04 12:00 |
07:17:39.73 |
+41:49:14.0 |
HIP 35382 |
10.03 |
| 2026-04-05 00:00 |
07:17:38.38 |
+41:48:33.9 |
HIP 35382 |
10.49 |
| 2026-04-05 12:00 |
07:17:37.11 |
+41:47:53.7 |
HIP 35382 |
10.96 |
| 2026-04-06 00:00 |
07:17:35.92 |
+41:47:13.4 |
HIP 35382 |
11.45 |
| 2026-04-06 12:00 |
07:17:34.81 |
+41:46:33.1 |
HIP 35382 |
11.95 |
| 2026-04-07 00:00 |
07:17:33.77 |
+41:45:52.7 |
HIP 35382 |
12.45 |
| 2026-04-07 12:00 |
07:17:32.81 |
+41:45:12.3 |
HIP 35382 |
12.96 |
| 2026-04-08 00:00 |
07:17:31.92 |
+41:44:31.8 |
HIP 35382 |
13.48 |
| 2026-04-08 12:00 |
07:17:31.11 |
+41:43:51.2 |
HIP 35354 |
13.70 |
| 2026-04-09 00:00 |
07:17:30.38 |
+41:43:10.6 |
HIP 35354 |
13.20 |
| 2026-04-09 12:00 |
07:17:29.73 |
+41:42:29.9 |
HIP 35354 |
12.71 |
| 2026-04-10 00:00 |
07:17:29.15 |
+41:41:49.1 |
HIP 35354 |
12.23 |
| 2026-04-10 12:00 |
07:17:28.64 |
+41:41:08.4 |
HIP 35354 |
11.76 |
| 2026-04-11 00:00 |
07:17:28.22 |
+41:40:27.5 |
HIP 35354 |
11.30 |
| 2026-04-11 12:00 |
07:17:27.86 |
+41:39:46.7 |
HIP 35354 |
10.86 |
| 2026-04-12 00:00 |
07:17:27.59 |
+41:39:05.8 |
HIP 35354 |
10.43 |
| 2026-04-12 12:00 |
07:17:27.38 |
+41:38:24.8 |
HIP 35354 |
10.01 |
| 2026-04-13 00:00 |
07:17:27.26 |
+41:37:43.8 |
HIP 35354 |
9.62 |
| 2026-04-13 12:00 |
07:17:27.20 |
+41:37:02.8 |
HIP 35354 |
9.25 |
| 2026-04-14 00:00 |
07:17:27.22 |
+41:36:21.8 |
HIP 35354 |
8.90 |
| 2026-04-14 12:00 |
07:17:27.32 |
+41:35:40.7 |
HIP 35354 |
8.58 |
| 2026-04-15 00:00 |
07:17:27.49 |
+41:34:59.6 |
HIP 35354 |
8.29 |
| 2026-04-15 12:00 |
07:17:27.73 |
+41:34:18.4 |
HIP 35354 |
8.04 |
| 2026-04-16 00:00 |
07:17:28.05 |
+41:33:37.3 |
HIP 35354 |
7.82 |