ASTROSAT CZTI

Data Quality Report

Orbit 24403

Creation date: 2024-06-27T19:05:37.945513
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/AS1A07_001T01_9000003598_24403cztM0_level2.evt modeM0/AS1A07_001T01_9000003598_24403cztM0_level2_quad_clean.evt
Size (bytes)440,023,680111,473,280
Size419.6 MB 106.3 MB
Events in quadrant A3,070,705757,017
Events in quadrant B3,331,465772,438
Events in quadrant C3,165,691718,770
Events in quadrant D3,339,118697,411

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130512
B0138382
C0131012
D0141142

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6166220.356795%
B6166861.394745%
C6166410.664937%
D6166340.551411%

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 7436 6167 0 0 0.00% 0.00%
B 7436 6167 21 21 0.28% 0.34%
C 7436 6167 1 1 0.01% 0.02%
D 7436 6167 28 28 0.38% 0.45%

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 13 254 10314 60.53 796 782 157.5
A 3 137 6864 38.62 796 782 157.5
A 0 226 6845 38.5 796 782 157.5
B 15 33 204762 1389.55 793 776 146.8
B 12 111 16950 110.18 793 776 146.8
B 11 111 14927 96.4 793 776 146.8
C 14 238 121842 702.82 747 752 172.3
C 7 247 108942 627.95 747 752 172.3
C 2 16 22758 127.73 747 752 172.3
D 1 52 369148 2030.56 753 731 181.4
D 2 120 43648 236.54 753 731 181.4
D 8 195 28517 153.14 753 731 181.4

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