메타데이터
| 항목 |
값 |
| Designation |
C/1998 T1 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1999-06-25T05:58:21.192960Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:57Z |
| Obs used |
376 |
| NEO |
- |
| M1 |
12.200 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1999-05-05.0000000 |
| e |
0.99911409 |
| q (au) |
1.467728 |
| a (au) |
1656.736959 |
| i (deg) |
170.159948 |
| Ω (om, deg) |
153.357852 |
| ω (w, deg) |
226.351694 |
| M (ma, deg) |
359.999251 |
밝기
산란 + 전체 선형
$$
M_a = (9.231 + 4.429\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
9.231 |
| n |
4.429 |
| gf |
1.000 |
| gb |
-0.516 |
| 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) |
| 2026-09-20 00:00 |
08:46:00.61 |
+22:29:33.2 |
HIP 43078 |
10.66 |
| 2026-09-20 12:00 |
08:46:02.15 |
+22:29:29.7 |
HIP 43078 |
10.40 |
| 2026-09-21 00:00 |
08:46:03.67 |
+22:29:26.2 |
HIP 43078 |
10.15 |
| 2026-09-21 12:00 |
08:46:05.18 |
+22:29:22.9 |
HIP 43078 |
9.91 |
| 2026-09-22 00:00 |
08:46:06.67 |
+22:29:19.6 |
HIP 43078 |
9.67 |
| 2026-09-22 12:00 |
08:46:08.15 |
+22:29:16.4 |
HIP 43078 |
9.45 |
| 2026-09-23 00:00 |
08:46:09.61 |
+22:29:13.3 |
HIP 43078 |
9.24 |
| 2026-09-23 12:00 |
08:46:11.05 |
+22:29:10.2 |
HIP 43078 |
9.04 |
| 2026-09-24 00:00 |
08:46:12.48 |
+22:29:07.2 |
HIP 43078 |
8.85 |
| 2026-09-24 12:00 |
08:46:13.89 |
+22:29:04.3 |
HIP 43078 |
8.67 |
| 2026-09-25 00:00 |
08:46:15.29 |
+22:29:01.5 |
HIP 43078 |
8.50 |
| 2026-09-25 12:00 |
08:46:16.66 |
+22:28:58.8 |
HIP 43078 |
8.34 |
| 2026-09-26 00:00 |
08:46:18.03 |
+22:28:56.1 |
HIP 43078 |
8.20 |
| 2026-09-26 12:00 |
08:46:19.37 |
+22:28:53.5 |
HIP 43078 |
8.07 |
| 2026-09-27 00:00 |
08:46:20.70 |
+22:28:51.0 |
HIP 43078 |
7.95 |
| 2026-09-27 12:00 |
08:46:22.01 |
+22:28:48.5 |
HIP 43078 |
7.84 |
| 2026-09-28 00:00 |
08:46:23.31 |
+22:28:46.2 |
HIP 43078 |
7.75 |
| 2026-09-28 12:00 |
08:46:24.58 |
+22:28:43.9 |
HIP 43078 |
7.67 |
| 2026-09-29 00:00 |
08:46:25.84 |
+22:28:41.7 |
HIP 43078 |
7.60 |
| 2026-09-29 12:00 |
08:46:27.09 |
+22:28:39.6 |
HIP 43078 |
7.54 |
| 2026-09-30 00:00 |
08:46:28.31 |
+22:28:37.5 |
HIP 43078 |
7.49 |
| 2026-09-30 12:00 |
08:46:29.52 |
+22:28:35.6 |
HIP 43078 |
7.46 |
| 2026-10-01 00:00 |
08:46:30.71 |
+22:28:33.7 |
HIP 43078 |
7.44 |
| 2026-10-01 12:00 |
08:46:31.88 |
+22:28:31.9 |
HIP 43078 |
7.43 |
| 2026-10-02 00:00 |
08:46:33.04 |
+22:28:30.1 |
HIP 43078 |
7.43 |
| 2026-10-02 12:00 |
08:46:34.17 |
+22:28:28.5 |
HIP 43078 |
7.44 |
| 2026-10-03 00:00 |
08:46:35.29 |
+22:28:26.9 |
HIP 43078 |
7.46 |
| 2026-10-03 12:00 |
08:46:36.39 |
+22:28:25.4 |
HIP 43078 |
7.49 |
| 2026-10-04 00:00 |
08:46:37.48 |
+22:28:24.0 |
HIP 43078 |
7.53 |
| 2026-10-04 12:00 |
08:46:38.54 |
+22:28:22.7 |
HIP 43078 |
7.58 |
| 2026-10-05 00:00 |
08:46:39.58 |
+22:28:21.5 |
HIP 43078 |
7.63 |
| 2026-10-05 12:00 |
08:46:40.61 |
+22:28:20.3 |
HIP 43078 |
7.70 |
| 2026-10-06 00:00 |
08:46:41.62 |
+22:28:19.2 |
HIP 43078 |
7.76 |
| 2026-10-06 12:00 |
08:46:42.61 |
+22:28:18.2 |
HIP 43078 |
7.84 |
| 2026-10-07 00:00 |
08:46:43.58 |
+22:28:17.3 |
HIP 43078 |
7.92 |
| 2026-10-07 12:00 |
08:46:44.53 |
+22:28:16.5 |
HIP 43078 |
8.00 |
| 2026-10-08 00:00 |
08:46:45.46 |
+22:28:15.8 |
HIP 43078 |
8.09 |
| 2026-10-08 12:00 |
08:46:46.37 |
+22:28:15.1 |
HIP 43078 |
8.18 |
| 2026-10-09 00:00 |
08:46:47.26 |
+22:28:14.5 |
HIP 43078 |
8.28 |
| 2026-10-09 12:00 |
08:46:48.14 |
+22:28:14.0 |
HIP 43078 |
8.38 |
| 2026-10-10 00:00 |
08:46:48.99 |
+22:28:13.6 |
HIP 43078 |
8.48 |
| 2026-10-10 12:00 |
08:46:49.82 |
+22:28:13.3 |
HIP 43078 |
8.58 |
| 2026-10-11 00:00 |
08:46:50.64 |
+22:28:13.1 |
HIP 43078 |
8.68 |