ASTROSAT CZTI

Data Quality Report

Orbit 08096

Creation date: 2024-06-27T15:27:54.748925
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_055T01_9000001114_08096cztM0_level2.evt modeM0/AS1A02_055T01_9000001114_08096cztM0_level2_quad_clean.evt
Size (bytes)570,510,720127,958,400
Size544.1 MB 122.0 MB
Events in quadrant A4,079,014805,075
Events in quadrant B4,272,767830,472
Events in quadrant C4,123,733836,284
Events in quadrant D4,214,157801,966

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0183102
B0187631
C0183501
D0189931

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01740
B01740
C01740
D01740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A86631301.500635%
B86632072.389472%
C8663750.865751%
D8663720.831121%

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 8698 8664 0 0 0.00% 0.00%
B 8698 8664 5 5 0.06% 0.06%
C 8698 8664 1 1 0.01% 0.01%
D 8698 8664 20 20 0.23% 0.23%

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 0 226 9952 40.75 1060 1033 218.9
A 12 194 9342 37.97 1060 1033 218.9
A 3 137 4158 14.28 1060 1033 218.9
B 11 51 42808 198.3 1073 1043 210.6
B 0 214 38099 175.94 1073 1043 210.6
B 10 16 25695 117.05 1073 1043 210.6
C 1 16 28829 113.4 1045 1047 245.0
C 0 224 9591 34.87 1045 1047 245.0
C 13 61 8018 28.45 1045 1047 245.0
D 13 122 118220 427.69 1026 996 274.1
D 1 52 90608 326.95 1026 996 274.1
D 13 105 31577 111.57 1026 996 274.1

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