ASTROSAT CZTI

Data Quality Report

Orbit 14546

Creation date: 2024-06-27T16:56:41.615633
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/AS1G08_081T01_9000002144_14546cztM0_level2.evt modeM0/AS1G08_081T01_9000002144_14546cztM0_level2_quad_clean.evt
Size (bytes)470,508,480112,633,920
Size448.7 MB 107.4 MB
Events in quadrant A3,512,215748,844
Events in quadrant B3,492,309749,631
Events in quadrant C3,526,727745,726
Events in quadrant D3,290,819727,942

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146273
B0145472
C0144282
D0139122

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6293871.382488%
B62931121.779755%
C6293741.175910%
D6293671.064675%

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 8919 6296 2 2 0.02% 0.03%
B 8919 6296 1 1 0.01% 0.02%
C 8919 6296 1 1 0.01% 0.02%
D 8919 6296 10 10 0.11% 0.16%

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 224456 1350.56 827 812 165.6
A 12 189 60688 361.59 827 812 165.6
A 9 143 26997 158.13 827 812 165.6
B 0 189 96026 613.72 832 813 155.1
B 4 142 32439 203.85 832 813 155.1
B 4 48 28122 176.03 832 813 155.1
C 3 233 316942 1689.88 821 826 187.1
C 13 61 5881 27.02 821 826 187.1
C 8 128 4770 21.08 821 826 187.1
D 10 199 53410 269.03 818 797 195.6
D 2 152 51481 259.17 818 797 195.6
D 2 120 36314 181.61 818 797 195.6

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