ASTROSAT CZTI

Data Quality Report

Orbit 14281

Creation date: 2024-06-27T16:52:52.506853
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_014T01_9000002104_14281cztM0_level2.evt modeM0/AS1G08_014T01_9000002104_14281cztM0_level2_quad_clean.evt
Size (bytes)518,477,76095,978,880
Size494.5 MB 91.5 MB
Events in quadrant A3,259,831630,573
Events in quadrant B3,581,401633,644
Events in quadrant C3,380,452603,923
Events in quadrant D5,030,202575,623

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139133
B0148912
C0140672
D0192712

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6641330.496913%
B66411091.641319%
C6641390.587261%
D66413665.511218%

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 8532 6644 0 0 0.00% 0.00%
B 8532 6644 29 29 0.34% 0.44%
C 8532 6644 3 3 0.04% 0.05%
D 8532 6644 291 291 3.41% 4.38%

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 12 189 84145 504.93 812 793 165.1
A 8 15 31562 186.39 812 793 165.1
A 9 143 14511 83.1 812 793 165.1
B 0 229 202820 1298.18 812 793 155.6
B 10 245 109353 697.58 812 793 155.6
B 4 48 40050 252.26 812 793 155.6
C 3 233 280695 1522.49 791 796 183.8
C 14 234 18916 98.56 791 796 183.8
C 13 61 5603 26.15 791 796 183.8
D 5 222 1290375 7024.5 776 758 183.6
D 12 110 507276 2758.99 776 758 183.6
D 8 195 138861 752.24 776 758 183.6

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