메타데이터
| 항목 |
값 |
| Designation |
C/2015 TQ209 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2016-08-27T14:18:38.540160Z |
| Orbit solution date (soln_date, UTC) |
2022-07-06T03:12:21Z |
| Obs used |
406 |
| NEO |
- |
| M1 |
10.900 |
| K1 |
8.750 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2015-12-20.0000000 |
| e |
0.99892368 |
| q (au) |
1.413143 |
| a (au) |
1312.933283 |
| i (deg) |
11.392694 |
| Ω (om, deg) |
224.083104 |
| ω (w, deg) |
281.506087 |
| M (ma, deg) |
359.994788 |
밝기
산란 + 전체 선형
$$
M_a = (H_0 + n\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
- |
| n |
- |
| gf |
- |
| gb |
- |
| k |
- |
| δ90 |
- |
| 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) |
| 2026-05-12 00:00 |
19:58:13.88 |
-09:22:49.8 |
HIP 98270 |
9.77 |
| 2026-05-12 12:00 |
19:58:12.25 |
-09:22:40.9 |
HIP 98270 |
9.52 |
| 2026-05-13 00:00 |
19:58:10.59 |
-09:22:32.2 |
HIP 98270 |
9.28 |
| 2026-05-13 12:00 |
19:58:08.89 |
-09:22:23.7 |
HIP 98270 |
9.06 |
| 2026-05-14 00:00 |
19:58:07.15 |
-09:22:15.4 |
HIP 98270 |
8.86 |
| 2026-05-14 12:00 |
19:58:05.37 |
-09:22:07.1 |
HIP 98270 |
8.68 |
| 2026-05-15 00:00 |
19:58:03.55 |
-09:21:59.1 |
HIP 98270 |
8.52 |
| 2026-05-15 12:00 |
19:58:01.70 |
-09:21:51.2 |
HIP 98270 |
8.39 |
| 2026-05-16 00:00 |
19:57:59.80 |
-09:21:43.5 |
HIP 98270 |
8.28 |
| 2026-05-16 12:00 |
19:57:57.87 |
-09:21:35.9 |
HIP 98270 |
8.21 |
| 2026-05-17 00:00 |
19:57:55.90 |
-09:21:28.5 |
HIP 98270 |
8.17 |
| 2026-05-17 12:00 |
19:57:53.89 |
-09:21:21.3 |
HIP 98270 |
8.17 |
| 2026-05-18 00:00 |
19:57:51.85 |
-09:21:14.2 |
HIP 98270 |
8.20 |
| 2026-05-18 12:00 |
19:57:49.76 |
-09:21:07.3 |
HIP 98270 |
8.27 |
| 2026-05-19 00:00 |
19:57:47.64 |
-09:21:00.5 |
HIP 98270 |
8.39 |
| 2026-05-19 12:00 |
19:57:45.49 |
-09:20:53.9 |
HIP 98270 |
8.54 |
| 2026-05-20 00:00 |
19:57:43.29 |
-09:20:47.5 |
HIP 98270 |
8.73 |
| 2026-05-20 12:00 |
19:57:41.06 |
-09:20:41.3 |
HIP 98270 |
8.95 |
| 2026-05-21 00:00 |
19:57:38.79 |
-09:20:35.2 |
HIP 98270 |
9.22 |
| 2026-05-21 12:00 |
19:57:36.49 |
-09:20:29.2 |
HIP 98270 |
9.51 |
| 2026-05-22 00:00 |
19:57:34.15 |
-09:20:23.5 |
HIP 98270 |
9.84 |
| 2026-05-22 12:00 |
19:57:31.77 |
-09:20:17.9 |
HIP 98270 |
10.21 |
| 2026-05-23 00:00 |
19:57:29.36 |
-09:20:12.5 |
HIP 98270 |
10.60 |
| 2026-05-23 12:00 |
19:57:26.92 |
-09:20:07.2 |
HIP 98270 |
11.02 |
| 2026-05-24 00:00 |
19:57:24.44 |
-09:20:02.1 |
HIP 98270 |
11.46 |
| 2026-05-24 12:00 |
19:57:21.92 |
-09:19:57.2 |
HIP 98270 |
11.93 |
| 2026-05-25 00:00 |
19:57:19.37 |
-09:19:52.4 |
HIP 98179 |
11.99 |
| 2026-05-25 12:00 |
19:57:16.78 |
-09:19:47.8 |
HIP 98179 |
11.77 |
| 2026-05-26 00:00 |
19:57:14.16 |
-09:19:43.4 |
HIP 98179 |
11.59 |
| 2026-05-26 12:00 |
19:57:11.51 |
-09:19:39.2 |
HIP 98179 |
11.44 |
| 2026-05-27 00:00 |
19:57:08.82 |
-09:19:35.1 |
HIP 98179 |
11.34 |
| 2026-05-27 12:00 |
19:57:06.10 |
-09:19:31.2 |
HIP 98179 |
11.27 |
| 2026-05-28 00:00 |
19:57:03.35 |
-09:19:27.4 |
HIP 98179 |
11.25 |
| 2026-05-28 12:00 |
19:57:00.56 |
-09:19:23.8 |
HIP 98179 |
11.28 |
| 2026-05-29 00:00 |
19:56:57.74 |
-09:19:20.4 |
HIP 98179 |
11.35 |
| 2026-05-29 12:00 |
19:56:54.88 |
-09:19:17.2 |
HIP 98179 |
11.47 |
| 2026-05-30 00:00 |
19:56:52.00 |
-09:19:14.1 |
HIP 98179 |
11.63 |
| 2026-05-30 12:00 |
19:56:49.08 |
-09:19:11.2 |
HIP 98179 |
11.84 |
| 2026-05-31 00:00 |
19:56:46.13 |
-09:19:08.4 |
HIP 98179 |
12.10 |
| 2026-05-31 12:00 |
19:56:43.15 |
-09:19:05.8 |
HIP 98179 |
12.40 |
| 2026-06-01 00:00 |
19:56:40.13 |
-09:19:03.4 |
HIP 98179 |
12.74 |
| 2026-06-01 12:00 |
19:56:37.09 |
-09:19:01.2 |
HIP 98179 |
13.13 |
| 2026-06-02 00:00 |
19:56:34.01 |
-09:18:59.1 |
HIP 98179 |
13.55 |