ASTROSAT CZTI

Data Quality Report

Orbit 06165

Creation date: 2024-06-27T15:03:38.479793
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_006T01_9000000802_06165cztM0_level2.evt modeM0/AS1A02_006T01_9000000802_06165cztM0_level2_quad_clean.evt
Size (bytes)469,157,760104,575,680
Size447.4 MB 99.7 MB
Events in quadrant A3,504,243684,263
Events in quadrant B3,619,954693,241
Events in quadrant C3,216,971672,409
Events in quadrant D3,410,344648,585

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148353
B0151112
C0140922
D0148792

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67191231.830630%
B67191412.098527%
C6719771.146004%
D67191512.247358%

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 8029 6719 9 9 0.11% 0.13%
B 8029 6719 25 25 0.31% 0.37%
C 8029 6719 2 2 0.02% 0.03%
D 8029 6720 53 53 0.66% 0.79%

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 8 15 166442 962.49 850 831 172.1
A 13 251 44049 251.17 850 831 172.1
A 14 111 22354 125.09 850 831 172.1
B 3 64 142674 880.3 855 838 161.1
B 0 219 69362 425.29 855 838 161.1
B 4 81 31638 191.16 855 838 161.1
C 9 16 15106 76.42 814 821 186.9
C 12 16 13878 69.85 814 821 186.9
C 1 16 8358 40.32 814 821 186.9
D 13 169 241496 1224.8 809 786 196.5
D 5 97 33098 164.41 809 786 196.5
D 8 195 31594 156.76 809 786 196.5

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