ASTROSAT CZTI

Data Quality Report

Orbit 07319

Creation date: 2024-06-27T15:18:24.699009
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A02_178T01_9000001006_07319cztM0_level2.evt modeM0/AS1A02_178T01_9000001006_07319cztM0_level2_quad_clean.evt
Size (bytes)454,815,36066,617,280
Size433.7 MB 63.5 MB
Events in quadrant A3,482,530388,952
Events in quadrant B3,354,465394,655
Events in quadrant C3,070,451391,180
Events in quadrant D3,412,849376,550

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147673
B0144942
C0138052
D0148502

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6677811.213120%
B6677650.973491%
C6677300.449304%
D66771121.677400%

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 7717 6677 10 10 0.13% 0.15%
B 7717 6677 2 2 0.03% 0.03%
C 7717 6677 0 0 0.00% 0.00%
D 7717 6677 65 65 0.84% 0.97%

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 384583 2359.27 797 779 162.7
A 3 1 10351 58.84 797 779 162.7
A 0 226 7657 42.28 797 779 162.7
B 0 214 100113 646.09 803 784 153.7
B 11 51 93784 604.93 803 784 153.7
B 4 81 24199 152.3 803 784 153.7
C 9 68 44842 245.82 774 778 179.3
C 13 61 6021 29.25 774 778 179.3
C 10 22 3177 13.38 774 778 179.3
D 14 34 158551 831.58 773 749 189.8
D 1 52 131529 689.18 773 749 189.8
D 2 14 88008 459.83 773 749 189.8

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