ASTROSAT CZTI

Data Quality Report

Orbit 29300

Creation date: 2024-06-27T20:02:32.267825
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/AS1A10_050T01_9000004212_29300cztM0_level2.evt modeM0/AS1A10_050T01_9000004212_29300cztM0_level2_quad_clean.evt
Size (bytes)881,838,72072,440,640
Size841.0 MB 69.1 MB
Events in quadrant A3,473,213452,274
Events in quadrant B3,811,592451,190
Events in quadrant C12,794,319381,760
Events in quadrant D6,160,051424,751

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143771
B0154161
C0428061
D0231741

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69331071.543343%
B69331702.452041%
C6932390256.289671%
D69323394.890364%

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 7743 6934 0 0 0.00% 0.00%
B 7743 6934 27 27 0.35% 0.39%
C 7742 6933 2957 2957 38.19% 42.65%
D 7742 6933 175 175 2.26% 2.52%

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 15590 81.3 897 878 181.0
A 3 137 8236 40.66 897 878 181.0
A 0 226 7838 38.46 897 878 181.0
B 5 255 231685 1368.94 884 863 168.6
B 5 172 33950 196.23 884 863 168.6
B 10 245 30533 175.96 884 863 168.6
C 3 233 9964874 61373.5 692 697 162.4
C 14 238 106304 650.48 692 697 162.4
C 2 114 14162 82.94 692 697 162.4
D 8 195 1194537 5889.24 859 836 202.7
D 1 52 464971 2289.85 859 836 202.7
D 13 153 299363 1472.81 859 836 202.7

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