ASTROSAT CZTI

Data Quality Report

Orbit 03093

Creation date: 2024-06-27T14:24:33.496085
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_237T03_9000000426_03093cztM0_level2.evt modeM0/AS1G05_237T03_9000000426_03093cztM0_level2_quad_clean.evt
Size (bytes)487,414,08085,890,240
Size464.8 MB 81.9 MB
Events in quadrant A3,397,896540,657
Events in quadrant B3,203,017545,950
Events in quadrant C3,421,235542,601
Events in quadrant D4,292,576512,845

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145603
B0140162
C0147752
D0176192

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6577400.608180%
B6577220.334499%
C6577610.927475%
D65772884.378896%

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 7662 6578 20 20 0.26% 0.30%
B 7662 6578 0 0 0.00% 0.00%
C 7662 6578 44 44 0.57% 0.67%
D 7662 6578 228 228 2.98% 3.47%

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 14 249 259908 1695.52 747 732 152.9
A 8 15 150962 982.8 747 732 152.9
A 12 247 59147 382.15 747 732 152.9
B 15 204 108240 732.44 765 748 146.8
B 0 219 52814 354.77 765 748 146.8
B 15 85 19519 127.9 765 748 146.8
C 1 192 208542 1218.63 728 735 170.5
C 14 223 159064 928.48 728 735 170.5
C 1 16 85093 494.7 728 735 170.5
D 1 7 1236414 6643.42 704 690 186.0
D 2 136 184370 987.49 704 690 186.0
D 13 114 46797 247.88 704 690 186.0

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