Observation information
- date-obs: 2026-04-30
- time-obs: 17:41:58.475200000
- date-end: 2026-05-01
- time-end: 00:40:30.412000000
- obs_id: A14_049T03_9000006570
- exposure: 15110.016412
- sourceid: NGC 1796
- observer: amrutha
- ra_pnt: 75.67679
- dec_pnt: -61.13996
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_049T03_9000006570_57295cztM0_level2.fits
| modeM0/AS1A14_049T03_9000006570_57295cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,137,170,880 | 205,871,040 |
| Size | 1.1 GB
| 196.3 MB
|
| Events in quadrant A | 8,207,665 | 1,340,026 |
| Events in quadrant B | 8,129,327 | 1,452,143 |
| Events in quadrant C | 10,364,213 | 1,221,956 |
| Events in quadrant D | 14,139,975 | 1,100,731 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 35382 | 3 |
| B | 0 | 35914 | 3 |
| C | 0 | 42044 | 3 |
| D | 0 | 53321 | 3 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24 | 0 |
| B | 0 | 24 | 0 |
| C | 0 | 24 | 0 |
| D | 0 | 24 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 332 | 0 |
| B | 0 | 332 | 0 |
| C | 0 | 332 | 0 |
| D | 0 | 332 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 16199 | 115 | 0.709920% |
| B | 16199 | 298 | 1.839620% |
| C | 16199 | 529 | 3.265634% |
| D | 16200 | 1385 | 8.549383% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
| Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
| A | 25397 | 16487 | 35 | 35 | 0.14% | 0.21% |  |
| B | 25397 | 16487 | 100 | 100 | 0.39% | 0.61% |  |
| C | 25397 | 16487 | 414 | 414 | 1.63% | 2.51% |  |
| D | 25398 | 16488 | 1241 | 1241 | 4.89% | 7.53% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
| Pixel properties |
Quadrant properties |
| Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
| A | 8 | 4 | 1115375 | 2607.46 | 1746 | 1700 | 427.1 |
| A | 3 | 14 | 203746 | 473.05 | 1746 | 1700 | 427.1 |
| A | 4 | 13 | 30588 | 67.64 | 1746 | 1700 | 427.1 |
| B | 5 | 185 | 580369 | 1581.73 | 1728 | 1663 | 365.9 |
| B | 10 | 16 | 168871 | 457.02 | 1728 | 1663 | 365.9 |
| B | 7 | 252 | 147096 | 397.5 | 1728 | 1663 | 365.9 |
| C | 15 | 224 | 2792667 | 6176.88 | 1675 | 1658 | 451.8 |
| C | 14 | 254 | 273178 | 600.91 | 1675 | 1658 | 451.8 |
| C | 12 | 250 | 183797 | 403.1 | 1675 | 1658 | 451.8 |
| D | 3 | 224 | 6295103 | 13844.06 | 1632 | 1553 | 454.6 |
| D | 3 | 12 | 346911 | 759.69 | 1632 | 1553 | 454.6 |
| D | 8 | 240 | 344990 | 755.47 | 1632 | 1553 | 454.6 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
| Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |