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) |
| 2026-05-12 00:00 |
08:37:54.34 |
+23:00:55.9 |
HIP 42253 |
19.33 |
| 2026-05-12 12:00 |
08:37:54.85 |
+23:00:51.5 |
HIP 42253 |
19.46 |
| 2026-05-13 00:00 |
08:37:55.37 |
+23:00:47.1 |
HIP 42253 |
19.60 |
| 2026-05-13 12:00 |
08:37:55.92 |
+23:00:42.6 |
HIP 42253 |
19.74 |
| 2026-05-14 00:00 |
08:37:56.49 |
+23:00:38.1 |
HIP 42253 |
19.89 |
| 2026-05-14 12:00 |
08:37:57.08 |
+23:00:33.4 |
HIP 42253 |
20.04 |
| 2026-05-15 00:00 |
08:37:57.68 |
+23:00:28.7 |
HIP 42253 |
20.19 |
| 2026-05-15 12:00 |
08:37:58.31 |
+23:00:24.0 |
HIP 42253 |
20.35 |
| 2026-05-16 00:00 |
08:37:58.96 |
+23:00:19.1 |
HIP 42253 |
20.51 |
| 2026-05-16 12:00 |
08:37:59.63 |
+23:00:14.2 |
HIP 42253 |
20.68 |
| 2026-05-17 00:00 |
08:38:00.32 |
+23:00:09.3 |
HIP 42443 |
20.73 |
| 2026-05-17 12:00 |
08:38:01.03 |
+23:00:04.3 |
HIP 42443 |
20.55 |
| 2026-05-18 00:00 |
08:38:01.76 |
+22:59:59.2 |
HIP 42443 |
20.36 |
| 2026-05-18 12:00 |
08:38:02.51 |
+22:59:54.0 |
HIP 42443 |
20.17 |
| 2026-05-19 00:00 |
08:38:03.27 |
+22:59:48.8 |
HIP 42443 |
19.98 |
| 2026-05-19 12:00 |
08:38:04.06 |
+22:59:43.6 |
HIP 42443 |
19.78 |
| 2026-05-20 00:00 |
08:38:04.87 |
+22:59:38.2 |
HIP 42443 |
19.57 |
| 2026-05-20 12:00 |
08:38:05.70 |
+22:59:32.8 |
HIP 42443 |
19.37 |
| 2026-05-21 00:00 |
08:38:06.55 |
+22:59:27.4 |
HIP 42443 |
19.15 |
| 2026-05-21 12:00 |
08:38:07.41 |
+22:59:21.9 |
HIP 42443 |
18.94 |
| 2026-05-22 00:00 |
08:38:08.30 |
+22:59:16.3 |
HIP 42443 |
18.72 |
| 2026-05-22 12:00 |
08:38:09.20 |
+22:59:10.7 |
HIP 42443 |
18.50 |
| 2026-05-23 00:00 |
08:38:10.13 |
+22:59:05.0 |
HIP 42443 |
18.27 |
| 2026-05-23 12:00 |
08:38:11.07 |
+22:58:59.2 |
HIP 42443 |
18.04 |
| 2026-05-24 00:00 |
08:38:12.03 |
+22:58:53.4 |
HIP 42443 |
17.80 |
| 2026-05-24 12:00 |
08:38:13.01 |
+22:58:47.6 |
HIP 42443 |
17.56 |
| 2026-05-25 00:00 |
08:38:14.01 |
+22:58:41.6 |
HIP 42443 |
17.32 |
| 2026-05-25 12:00 |
08:38:15.03 |
+22:58:35.7 |
HIP 42443 |
17.07 |
| 2026-05-26 00:00 |
08:38:16.06 |
+22:58:29.6 |
HIP 42443 |
16.82 |
| 2026-05-26 12:00 |
08:38:17.12 |
+22:58:23.5 |
HIP 42443 |
16.56 |
| 2026-05-27 00:00 |
08:38:18.19 |
+22:58:17.4 |
HIP 42443 |
16.30 |
| 2026-05-27 12:00 |
08:38:19.28 |
+22:58:11.2 |
HIP 42443 |
16.04 |
| 2026-05-28 00:00 |
08:38:20.39 |
+22:58:05.0 |
HIP 42443 |
15.78 |
| 2026-05-28 12:00 |
08:38:21.51 |
+22:57:58.7 |
HIP 42443 |
15.51 |
| 2026-05-29 00:00 |
08:38:22.66 |
+22:57:52.3 |
HIP 42443 |
15.23 |
| 2026-05-29 12:00 |
08:38:23.82 |
+22:57:45.9 |
HIP 42443 |
14.96 |
| 2026-05-30 00:00 |
08:38:25.00 |
+22:57:39.5 |
HIP 42443 |
14.68 |
| 2026-05-30 12:00 |
08:38:26.20 |
+22:57:33.0 |
HIP 42443 |
14.40 |
| 2026-05-31 00:00 |
08:38:27.41 |
+22:57:26.4 |
HIP 42443 |
14.11 |
| 2026-05-31 12:00 |
08:38:28.64 |
+22:57:19.8 |
HIP 42443 |
13.82 |
| 2026-06-01 00:00 |
08:38:29.89 |
+22:57:13.2 |
HIP 42443 |
13.53 |
| 2026-06-01 12:00 |
08:38:31.16 |
+22:57:06.5 |
HIP 42443 |
13.24 |
| 2026-06-02 00:00 |
08:38:32.44 |
+22:56:59.7 |
HIP 42443 |
12.94 |