ASTROSAT CZTI

Data Quality Report

Orbit 44016

Creation date: 2024-06-27T22:58:19.734412
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/AS1A13_037T01_9000005930_44016cztM0_level2.fits modeM0/AS1A13_037T01_9000005930_44016cztM0_level2_quad_clean.evt
Size (bytes)484,093,440115,315,200
Size461.7 MB 110.0 MB
Events in quadrant A4,929,001752,281
Events in quadrant B3,684,564788,455
Events in quadrant C4,156,324762,503
Events in quadrant D4,588,043684,807

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200050
B0158410
C0172160
D0184230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72312693.720094%
B72322102.903761%
C72321492.060288%
D72322012.779314%

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 7231 7231 73 73 1.01% 1.01%
B 7232 7232 16 16 0.22% 0.22%
C 7232 7232 78 78 1.08% 1.08%
D 7232 7232 107 107 1.48% 1.48%

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 10 83 1142609 6577.18 828 807 173.6
A 14 238 475555 2734.72 828 807 173.6
A 15 222 70097 399.13 828 807 173.6
B 15 36 125707 748.95 827 799 166.8
B 0 213 81353 483.0 827 799 166.8
B 4 171 62882 372.25 827 799 166.8
C 3 233 554667 2886.9 811 813 191.9
C 15 1 202432 1050.91 811 813 191.9
C 15 158 127343 659.52 811 813 191.9
D 1 52 632021 3087.22 811 787 204.5
D 13 249 161777 787.36 811 787 204.5
D 2 120 85203 412.86 811 787 204.5

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