ASTROSAT CZTI

Data Quality Report

Orbit 07469

Creation date: 2024-06-27T15:20:10.401840
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/AS1G06_116T01_9000001026_07469cztM0_level2.evt modeM0/AS1G06_116T01_9000001026_07469cztM0_level2_quad_clean.evt
Size (bytes)393,140,160114,992,640
Size374.9 MB 109.7 MB
Events in quadrant A2,711,534769,127
Events in quadrant B2,829,282789,405
Events in quadrant C2,719,920777,649
Events in quadrant D3,247,326737,745

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120192
B0123611
C0119831
D0135161

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5849510.871944%
B5849731.248077%
C5849440.752265%
D5849801.367755%

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 7169 5850 0 0 0.00% 0.00%
B 7169 5850 3 3 0.04% 0.05%
C 7169 5850 2 2 0.03% 0.03%
D 7169 5850 33 33 0.46% 0.56%

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 17824 122.5 697 684 139.9
A 3 1 6656 42.68 697 684 139.9
A 0 226 6615 42.39 697 684 139.9
B 0 214 76704 575.14 707 690 132.2
B 11 51 13380 96.01 707 690 132.2
B 12 111 12951 92.77 707 690 132.2
C 1 16 14565 88.05 691 694 157.5
C 13 61 5484 30.4 691 694 157.5
C 9 68 5176 28.45 691 694 157.5
D 12 221 201187 1217.51 686 666 164.7
D 13 105 180046 1089.14 686 666 164.7
D 13 169 69964 420.76 686 666 164.7

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