ASTROSAT CZTI

Data Quality Report

Orbit 24217

Creation date: 2024-06-27T19:03:34.816421
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/AS1A07_010T12_9000003582_24217cztM0_level2.evt modeM0/AS1A07_010T12_9000003582_24217cztM0_level2_quad_clean.evt
Size (bytes)535,763,52099,449,280
Size510.9 MB 94.8 MB
Events in quadrant A3,448,654652,080
Events in quadrant B3,551,235663,425
Events in quadrant C4,023,251637,884
Events in quadrant D4,772,061615,097

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139182
B0143062
C0161982
D0186614

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63491282.016066%
B63491762.772090%
C63492353.701370%
D63482123.339635%

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 7659 6350 0 0 0.00% 0.00%
B 7659 6349 6 6 0.08% 0.09%
C 7659 6349 0 0 0.00% 0.00%
D 7658 6348 106 106 1.38% 1.67%

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 13 254 10292 53.57 894 879 175.7
A 0 226 7967 40.34 894 879 175.7
A 3 137 6979 34.72 894 879 175.7
B 15 33 51103 313.04 884 867 160.5
B 12 111 18056 107.11 884 867 160.5
B 11 111 16207 95.59 884 867 160.5
C 7 247 483614 2487.58 862 871 194.1
C 14 238 142166 728.1 862 871 194.1
C 2 16 32611 163.56 862 871 194.1
D 8 195 920959 4427.48 870 847 207.8
D 7 238 384445 1845.83 870 847 207.8
D 12 218 73516 349.68 870 847 207.8

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