Observation information
- date-obs: 2024-08-17
- time-obs: 19:32:50.442100000
- date-end: 2024-08-17
- time-end: 21:31:17.431100000
- obs_id: A13_024T01_9000006394
- exposure: 455.219895005
- sourceid: NGC 991
- observer: amrutha
- ra_pnt: 38.88617
- dec_pnt: -7.154436
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A13_024T01_9000006394_48070cztM0_level2.fits
| modeM0/AS1A13_024T01_9000006394_48070cztM0_level2_quad_clean.evt
|
| Size (bytes) | 381,047,040 | 80,026,560 |
| Size | 363.4 MB
| 76.3 MB
|
| Events in quadrant A | 6,543,997 | 673,017 |
| Events in quadrant B | 998,247 | 40,736 |
| Events in quadrant C | 2,734,615 | 675,500 |
| Events in quadrant D | 3,360,663 | 617,357 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 120 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23197 | 2 |
| B | 0 | 6188 | 2 |
| C | 0 | 12262 | 2 |
| D | 0 | 14102 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5921 | 525 | 8.866745% |
| B | 5922 | 5922 | 100.000000% |
| C | 5922 | 32 | 0.540358% |
| D | 5922 | 136 | 2.296521% |
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 | 7107 | 5921 | 191 | 191 | 2.69% | 3.23% |  |
| B | 7107 | 5921 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7108 | 5923 | 4 | 4 | 0.06% | 0.07% |  |
| D | 7108 | 5923 | 57 | 57 | 0.80% | 0.96% |  |
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 | 10 | 83 | 3594038 | 25645.87 | 675 | 660 | 140.1 |
| A | 0 | 31 | 247913 | 1764.64 | 675 | 660 | 140.1 |
| A | 13 | 248 | 71747 | 507.35 | 675 | 660 | 140.1 |
| B | 2 | 177 | 821111 | 77979.01 | 42 | 41 | 10.5 |
| B | 5 | 32 | 3082 | 288.81 | 42 | 41 | 10.5 |
| B | 5 | 255 | 2679 | 250.54 | 42 | 41 | 10.5 |
| C | 12 | 2 | 18652 | 110.19 | 689 | 696 | 163.0 |
| C | 1 | 3 | 13390 | 77.9 | 689 | 696 | 163.0 |
| C | 14 | 254 | 11015 | 63.32 | 689 | 696 | 163.0 |
| D | 2 | 165 | 298565 | 1701.09 | 685 | 665 | 175.1 |
| D | 2 | 249 | 191765 | 1091.23 | 685 | 665 | 175.1 |
| D | 11 | 224 | 111977 | 635.62 | 685 | 665 | 175.1 |
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 |  |