ASTROSAT CZTI

Data Quality Report

Orbit 04605

Creation date: 2024-06-27T14:44:27.094825
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/AS1G05_154T01_9000000576_04605cztM0_level2.evt modeM0/AS1G05_154T01_9000000576_04605cztM0_level2_quad_clean.evt
Size (bytes)118,972,8004,129,920
Size113.5 MB 3.9 MB
Events in quadrant A747,3471,133
Events in quadrant B786,8811,052
Events in quadrant C882,8391,153
Events in quadrant D1,073,0151,174

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A033912
B034261
C037321
D044011

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1625321.969231%
B1625291.784615%
C1625201.230769%
D16251207.384615%

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 2500 1626 0 0 0.00% 0.00%
B 2500 1626 1 1 0.04% 0.06%
C 2500 1626 0 0 0.00% 0.00%
D 2500 1626 65 65 2.60% 4.00%

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 3 1 4081 93.85 192 187 41.5
A 13 14 2310 51.17 192 187 41.5
A 12 194 1911 41.55 192 187 41.5
B 14 167 8676 207.78 198 193 40.8
B 15 204 4651 109.19 198 193 40.8
B 12 111 3872 90.11 198 193 40.8
C 14 48 122407 2601.15 191 191 47.0
C 12 4 10293 215.0 191 191 47.0
C 9 54 1829 34.86 191 191 47.0
D 13 235 339301 7347.11 182 176 46.2
D 2 14 19101 410.01 182 176 46.2
D 2 136 15354 328.83 182 176 46.2

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