메타데이터
| 항목 |
값 |
| Designation |
P/2018 V5 (Trujillo-Sheppard) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2018-10-03T20:45:02.079360Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:33:48Z |
| Obs used |
21 |
| NEO |
- |
| M1 |
6.400 |
| K1 |
19.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2018-11-06T12:29:37.939200Z |
| Discovery magnitude (MPC) |
22.21 G |
| Discovery observatory (MPC) |
T09 · Subaru Telescope, Maunakea |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2018-08-01.0000000 |
| e |
0.47462980 |
| q (au) |
4.707643 |
| a (au) |
8.960620 |
| i (deg) |
10.580193 |
| Ω (om, deg) |
171.328440 |
| ω (w, deg) |
260.805603 |
| M (ma, deg) |
357.653302 |
밝기
산란 + 전체 선형
$$
M_a = (10.719 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
10.719 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.584 |
| k |
0.800 |
| δ90 |
10.000 |
| 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 |
14:34:54.40 |
-06:42:23.5 |
HIP 71199 |
20.67 |
| 2026-03-26 12:00 |
14:34:48.26 |
-06:41:34.2 |
HIP 71199 |
19.78 |
| 2026-03-27 00:00 |
14:34:42.06 |
-06:40:44.8 |
HIP 71199 |
18.99 |
| 2026-03-27 12:00 |
14:34:35.80 |
-06:39:55.3 |
HIP 71199 |
18.32 |
| 2026-03-28 00:00 |
14:34:29.49 |
-06:39:05.7 |
HIP 71199 |
17.79 |
| 2026-03-28 12:00 |
14:34:23.12 |
-06:38:16.0 |
HIP 71199 |
17.42 |
| 2026-03-29 00:00 |
14:34:16.70 |
-06:37:26.2 |
HIP 71199 |
17.23 |
| 2026-03-29 12:00 |
14:34:10.22 |
-06:36:36.2 |
HIP 71199 |
17.21 |
| 2026-03-30 00:00 |
14:34:03.69 |
-06:35:46.2 |
HIP 71199 |
17.38 |
| 2026-03-30 12:00 |
14:33:57.11 |
-06:34:56.1 |
HIP 71199 |
17.74 |
| 2026-03-31 00:00 |
14:33:50.47 |
-06:34:05.9 |
HIP 71199 |
18.28 |
| 2026-03-31 12:00 |
14:33:43.78 |
-06:33:15.6 |
HIP 71199 |
18.98 |
| 2026-04-01 00:00 |
14:33:37.05 |
-06:32:25.3 |
HIP 71199 |
19.83 |
| 2026-04-01 12:00 |
14:33:30.26 |
-06:31:34.8 |
HIP 71199 |
20.82 |
| 2026-04-02 00:00 |
14:33:23.42 |
-06:30:44.4 |
HIP 71199 |
21.94 |
| 2026-04-02 12:00 |
14:33:16.54 |
-06:29:53.8 |
HIP 71199 |
23.15 |
| 2026-04-03 00:00 |
14:33:09.60 |
-06:29:03.2 |
HIP 71199 |
24.46 |
| 2026-04-03 12:00 |
14:33:02.62 |
-06:28:12.5 |
HIP 71199 |
25.85 |
| 2026-04-04 00:00 |
14:32:55.60 |
-06:27:21.8 |
HIP 71199 |
27.32 |
| 2026-04-04 12:00 |
14:32:48.53 |
-06:26:31.1 |
HIP 71199 |
28.84 |
| 2026-04-05 00:00 |
14:32:41.41 |
-06:25:40.3 |
HIP 71199 |
30.42 |
| 2026-04-05 12:00 |
14:32:34.25 |
-06:24:49.5 |
HIP 71199 |
32.05 |
| 2026-04-06 00:00 |
14:32:27.05 |
-06:23:58.6 |
HIP 71199 |
33.72 |
| 2026-04-06 12:00 |
14:32:19.81 |
-06:23:07.8 |
HIP 71199 |
35.42 |
| 2026-04-07 00:00 |
14:32:12.52 |
-06:22:16.9 |
HIP 71199 |
37.17 |
| 2026-04-07 12:00 |
14:32:05.20 |
-06:21:26.0 |
HIP 70973 |
36.95 |
| 2026-04-08 00:00 |
14:31:57.83 |
-06:20:35.1 |
HIP 70973 |
35.41 |
| 2026-04-08 12:00 |
14:31:50.43 |
-06:19:44.1 |
HIP 70973 |
33.93 |
| 2026-04-09 00:00 |
14:31:42.99 |
-06:18:53.2 |
HIP 70973 |
32.49 |
| 2026-04-09 12:00 |
14:31:35.51 |
-06:18:02.3 |
HIP 70973 |
31.13 |
| 2026-04-10 00:00 |
14:31:28.00 |
-06:17:11.5 |
HIP 70973 |
29.83 |
| 2026-04-10 12:00 |
14:31:20.45 |
-06:16:20.6 |
HIP 70973 |
28.63 |
| 2026-04-11 00:00 |
14:31:12.86 |
-06:15:29.8 |
HIP 70973 |
27.52 |
| 2026-04-11 12:00 |
14:31:05.25 |
-06:14:38.9 |
HIP 70879 |
25.89 |
| 2026-04-12 00:00 |
14:30:57.60 |
-06:13:48.2 |
HIP 70879 |
23.87 |
| 2026-04-12 12:00 |
14:30:49.91 |
-06:12:57.4 |
HIP 70879 |
21.85 |
| 2026-04-13 00:00 |
14:30:42.20 |
-06:12:06.7 |
HIP 70879 |
19.84 |
| 2026-04-13 12:00 |
14:30:34.46 |
-06:11:16.1 |
HIP 70879 |
17.85 |
| 2026-04-14 00:00 |
14:30:26.69 |
-06:10:25.5 |
HIP 70879 |
15.89 |
| 2026-04-14 12:00 |
14:30:18.89 |
-06:09:35.0 |
HIP 70879 |
13.96 |
| 2026-04-15 00:00 |
14:30:11.06 |
-06:08:44.6 |
HIP 70879 |
12.09 |
| 2026-04-15 12:00 |
14:30:03.21 |
-06:07:54.2 |
HIP 70879 |
10.32 |
| 2026-04-16 00:00 |
14:29:55.33 |
-06:07:03.9 |
HIP 70879 |
8.71 |