Observation information
- date-obs: 2017-10-24
- time-obs: 07:43:34.645000000
- date-end: 2017-10-24
- time-end: 10:05:58.650400000
- obs_id: A04_171T01_9000001634
- exposure: 4233.59858515
- sourceid: NGC 424
- observer: sachi
- ra_pnt: 17.86511
- dec_pnt: -38.08347
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_171T01_9000001634_11208cztM0_level2.evt
| modeM0/AS1A04_171T01_9000001634_11208cztM0_level2_quad_clean.evt
|
| Size (bytes) | 711,164,160 | 86,057,280 |
| Size | 678.2 MB
| 82.1 MB
|
| Events in quadrant A | 5,283,318 | 508,297 |
| Events in quadrant B | 5,161,530 | 514,808 |
| Events in quadrant C | 4,081,146 | 518,588 |
| Events in quadrant D | 6,451,370 | 489,155 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 170 | 4 |
| B | 0 | 170 | 4 |
| C | 0 | 170 | 2 |
| D | 0 | 170 | 2 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21585 | 449 |
| B | 0 | 21144 | 389 |
| C | 0 | 18417 | 338 |
| D | 0 | 25472 | 783 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1 | 0 |
| B | 0 | 1 | 0 |
| C | 0 | 1 | 0 |
| D | 0 | 1 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8265 | 697 | 8.433152% |
| B | 8271 | 921 | 11.135292% |
| C | 8272 | 553 | 6.685203% |
| D | 8255 | 1108 | 13.422168% |
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 | 8480 | 8314 | 26 | 26 | 0.31% | 0.31% |  |
| B | 8486 | 8318 | 144 | 144 | 1.70% | 1.73% |  |
| C | 8506 | 8310 | 3 | 3 | 0.04% | 0.04% |  |
| D | 8472 | 8289 | 416 | 416 | 4.91% | 5.02% |  |
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 | 15 | 906736 | 4166.77 | 1038 | 1010 | 217.4 |
| A | 8 | 5 | 276423 | 1267.03 | 1038 | 1010 | 217.4 |
| A | 1 | 162 | 36947 | 165.33 | 1038 | 1010 | 217.4 |
| B | 4 | 239 | 923820 | 4450.57 | 1036 | 1007 | 207.3 |
| B | 15 | 204 | 62377 | 295.98 | 1036 | 1007 | 207.3 |
| B | 4 | 80 | 49432 | 233.55 | 1036 | 1007 | 207.3 |
| C | 5 | 128 | 13926 | 52.59 | 1035 | 1039 | 245.1 |
| C | 8 | 128 | 11568 | 42.97 | 1035 | 1039 | 245.1 |
| C | 13 | 61 | 7669 | 27.05 | 1035 | 1039 | 245.1 |
| D | 2 | 14 | 1214289 | 4971.3 | 1001 | 969 | 244.1 |
| D | 1 | 52 | 858343 | 3512.89 | 1001 | 969 | 244.1 |
| D | 13 | 152 | 296788 | 1212.05 | 1001 | 969 | 244.1 |
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 |  |