ASTROSAT CZTI

Data Quality Report

Orbit 22430

Creation date: 2024-06-27T18:41:17.197084
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/AS1T03_159T01_9000003328_22430cztM0_level2.evt modeM0/AS1T03_159T01_9000003328_22430cztM0_level2_quad_clean.evt
Size (bytes)880,297,920154,010,880
Size839.5 MB 146.9 MB
Events in quadrant A6,158,033953,194
Events in quadrant B6,602,082965,180
Events in quadrant C6,208,425921,552
Events in quadrant D6,797,726912,264

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02680
B02680
C02680
D02680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270043
B0280683
C0270253
D0290347

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A131971621.227552%
B131972181.651891%
C131972131.614003%
D131961501.136708%

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 14437 13197 0 0 0.00% 0.00%
B 14437 13198 29 29 0.20% 0.22%
C 14437 13198 0 0 0.00% 0.00%
D 14436 13198 16 16 0.11% 0.12%

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 6 240 27739 82.29 1581 1544 318.3
A 15 174 27710 82.2 1581 1544 318.3
A 13 254 17820 51.13 1581 1544 318.3
B 6 36 287676 946.98 1574 1529 302.2
B 0 244 61031 196.92 1574 1529 302.2
B 4 173 40483 128.92 1574 1529 302.2
C 14 238 240096 670.97 1526 1537 355.5
C 1 16 12692 31.37 1526 1537 355.5
C 13 61 10650 25.63 1526 1537 355.5
D 7 223 505433 1354.0 1546 1505 372.2
D 1 52 216475 577.6 1546 1505 372.2
D 13 172 63075 165.43 1546 1505 372.2

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