ASTROSAT CZTI

Data Quality Report

Orbit 07183

Creation date: 2024-06-27T15:16:47.600013
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_176T01_9000000980_07183cztM0_level2.evt modeM0/AS1A02_176T01_9000000980_07183cztM0_level2_quad_clean.evt
Size (bytes)559,670,400131,077,440
Size533.7 MB 125.0 MB
Events in quadrant A3,399,674868,665
Events in quadrant B3,797,040894,693
Events in quadrant C3,331,139877,411
Events in quadrant D5,917,819812,080

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154082
B0161251
C0153401
D0225401

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74352533.402824%
B74352683.604573%
C74351752.353732%
D74354986.698050%

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 7510 7435 2 2 0.03% 0.03%
B 7510 7436 9 9 0.12% 0.12%
C 7510 7436 0 0 0.00% 0.00%
D 7510 7435 228 228 3.04% 3.07%

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 43378 241.69 861 838 176.0
A 14 111 20978 114.42 861 838 176.0
A 15 174 17659 95.57 861 838 176.0
B 4 239 108225 637.21 870 847 168.5
B 0 219 97078 571.06 870 847 168.5
B 4 81 91557 538.3 870 847 168.5
C 8 128 10600 49.54 847 848 196.8
C 8 112 6632 29.38 847 848 196.8
C 13 61 6443 28.42 847 848 196.8
D 8 195 1021867 5018.06 830 798 203.5
D 2 216 814055 3996.77 830 798 203.5
D 14 34 652793 3204.24 830 798 203.5

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