ASTROSAT CZTI

Data Quality Report

Orbit 19134

Creation date: 2024-06-27T17:59:23.631857
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/AS1A05_046T01_9000002838_19134cztM0_level2.evt modeM0/AS1A05_046T01_9000002838_19134cztM0_level2_quad_clean.evt
Size (bytes)512,844,480104,947,200
Size489.1 MB 100.1 MB
Events in quadrant A3,475,110679,480
Events in quadrant B3,710,817705,971
Events in quadrant C3,561,390676,963
Events in quadrant D4,325,955645,037

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145753
B0152852
C0147262
D0173132

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6760841.242604%
B67611221.804467%
C67611031.523443%
D67611071.582606%

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 9245 6762 0 0 0.00% 0.00%
B 9246 6763 6 6 0.06% 0.09%
C 9246 6763 0 0 0.00% 0.00%
D 9246 6763 41 41 0.44% 0.61%

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 8390 41.5 901 883 180.9
A 0 226 7911 38.85 901 883 180.9
A 3 137 6694 32.12 901 883 180.9
B 7 220 66833 383.51 908 889 171.9
B 0 197 30817 174.05 908 889 171.9
B 10 245 23933 134.02 908 889 171.9
C 14 238 137624 668.93 876 884 204.4
C 13 61 6239 26.2 876 884 204.4
C 0 207 5362 21.91 876 884 204.4
D 1 20 602416 2865.14 875 854 210.0
D 11 176 208252 987.8 875 854 210.0
D 1 52 186449 883.96 875 854 210.0

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