ASTROSAT CZTI

Data Quality Report

Orbit 05404

Creation date: 2024-06-27T14:54:49.923633
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/AS1G05_214T01_9000000684_05404cztM0_level2.evt modeM0/AS1G05_214T01_9000000684_05404cztM0_level2_quad_clean.evt
Size (bytes)685,183,68079,830,720
Size653.4 MB 76.1 MB
Events in quadrant A4,241,286458,999
Events in quadrant B4,315,329460,553
Events in quadrant C4,207,233464,981
Events in quadrant D7,397,259428,223

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01760
B01760
C01760
D01760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0186043
B0185852
C0185432
D0279282

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A87014044.643144%
B87014465.125848%
C87012272.608896%
D870188310.148259%

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 8766 8703 2 2 0.02% 0.02%
B 8766 8703 0 0 0.00% 0.00%
C 8766 8703 0 0 0.00% 0.00%
D 8766 8703 534 534 6.09% 6.14%

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 0 50 39314 171.14 1073 1046 223.6
A 0 247 23335 99.68 1073 1046 223.6
A 15 174 17160 72.06 1073 1046 223.6
B 15 204 32126 143.68 1089 1062 216.2
B 0 219 21487 94.47 1089 1062 216.2
B 12 111 20507 89.94 1089 1062 216.2
C 1 16 64821 254.99 1053 1057 250.1
C 9 247 18361 69.2 1053 1057 250.1
C 14 67 17609 66.19 1053 1057 250.1
D 2 63 2623630 10445.18 1007 973 251.1
D 2 152 369757 1468.75 1007 973 251.1
D 2 136 274825 1090.66 1007 973 251.1

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