Observation information
- date-obs: 2023-01-17
- time-obs: 21:05:15.689300000
- date-end: 2023-01-17
- time-end: 23:24:29.688600000
- obs_id: A12_018T01_9000005488
- exposure: 4422.38751817
- sourceid: NEP
- observer: kanak
- ra_pnt: 260.6996
- dec_pnt: 65.82265
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A12_018T01_9000005488_39505cztM0_level2.fits
| modeM0/AS1A12_018T01_9000005488_39505cztM0_level2_quad_clean.evt
|
| Size (bytes) | 307,402,560 | 85,815,360 |
| Size | 293.2 MB
| 81.8 MB
|
| Events in quadrant A | 2,650,138 | 582,210 |
| Events in quadrant B | 2,952,077 | 572,526 |
| Events in quadrant C | 2,605,823 | 581,413 |
| Events in quadrant D | 2,796,636 | 525,622 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 98 | 0 |
| B | 0 | 98 | 0 |
| C | 0 | 98 | 0 |
| D | 0 | 98 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10907 | 3 |
| B | 0 | 12061 | 2 |
| C | 0 | 10685 | 2 |
| D | 0 | 11742 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 35 | 0 |
| B | 0 | 35 | 0 |
| C | 0 | 35 | 0 |
| D | 0 | 36 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4799 | 20 | 0.416753% |
| B | 4799 | 326 | 6.793082% |
| C | 4799 | 53 | 1.104397% |
| D | 4799 | 114 | 2.375495% |
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 | 6952 | 4800 | 12 | 12 | 0.17% | 0.25% |  |
| B | 6952 | 4800 | 288 | 288 | 4.14% | 6.00% |  |
| C | 6952 | 4800 | 49 | 49 | 0.70% | 1.02% |  |
| D | 6952 | 4800 | 99 | 99 | 1.42% | 2.06% |  |
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 | 395735 | 3690.41 | 532 | 524 | 107.1 |
| A | 2 | 79 | 61813 | 572.31 | 532 | 524 | 107.1 |
| A | 9 | 143 | 58000 | 536.7 | 532 | 524 | 107.1 |
| B | 5 | 172 | 884492 | 8955.42 | 524 | 510 | 98.7 |
| B | 12 | 111 | 12285 | 119.29 | 524 | 510 | 98.7 |
| B | 11 | 111 | 11260 | 108.91 | 524 | 510 | 98.7 |
| C | 9 | 187 | 319775 | 2623.82 | 527 | 531 | 121.7 |
| C | 15 | 214 | 202673 | 1661.38 | 527 | 531 | 121.7 |
| C | 3 | 233 | 13187 | 104.02 | 527 | 531 | 121.7 |
| D | 2 | 249 | 246756 | 1977.03 | 517 | 502 | 124.6 |
| D | 13 | 249 | 243154 | 1948.11 | 517 | 502 | 124.6 |
| D | 12 | 227 | 217047 | 1738.51 | 517 | 502 | 124.6 |
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 |  |