ASTROSAT CZTI

Data Quality Report

Orbit 20110

Creation date: 2024-06-27T18:11:27.048555
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/AS1A05_180T01_9000002992_20110cztM0_level2.evt modeM0/AS1A05_180T01_9000002992_20110cztM0_level2_quad_clean.evt
Size (bytes)774,927,360109,428,480
Size739.0 MB 104.4 MB
Events in quadrant A7,867,038630,976
Events in quadrant B6,611,863714,792
Events in quadrant C3,664,112734,521
Events in quadrant D4,823,379715,936

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0283041
B0246031
C0154231
D0193801

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7429184624.848566%
B7430100013.458950%
C74301672.247645%
D74304005.383580%

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 7604 7431 1178 1178 15.49% 15.85%
B 7605 7432 654 654 8.60% 8.80%
C 7605 7432 0 0 0.00% 0.00%
D 7605 7432 219 219 2.88% 2.95%

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 14 238 4087262 24351.21 820 803 167.8
A 14 254 582836 3468.33 820 803 167.8
A 14 237 35829 208.72 820 803 167.8
B 10 245 3064010 18357.52 875 855 166.9
B 4 80 48258 284.09 875 855 166.9
B 0 183 22818 131.62 875 855 166.9
C 14 238 140317 661.28 899 907 210.8
C 0 207 10358 44.83 899 907 210.8
C 13 61 6225 25.23 899 907 210.8
D 1 52 1247248 5759.02 888 864 216.4
D 7 238 92283 422.41 888 864 216.4
D 12 218 49757 225.91 888 864 216.4

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