ASTROSAT CZTI

Data Quality Report

Orbit 17573

Creation date: 2024-06-27T17:38:10.137966
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_056T01_9000002604_17573cztM0_level2.evt modeM0/AS1A05_056T01_9000002604_17573cztM0_level2_quad_clean.evt
Size (bytes)93,841,9203,833,280
Size89.5 MB 3.7 MB
Events in quadrant A692,5214,886
Events in quadrant B692,8805,060
Events in quadrant C700,7414,921
Events in quadrant D666,3354,824

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A027421
B027491
C027691
D026931

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A127650.391850%
B1276181.410658%
C1276191.489028%
D127620.156740%

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 1276 1276 0 0 0.00% 0.00%
B 1276 1276 0 0 0.00% 0.00%
C 1276 1276 0 0 0.00% 0.00%
D 1276 1276 0 0 0.00% 0.00%

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 14 237 11020 287.91 177 174 37.7
A 0 226 1577 37.24 177 174 37.7
A 12 194 1277 29.28 177 174 37.7
B 12 111 4016 109.06 176 172 35.2
B 11 111 3625 97.97 176 172 35.2
B 14 111 3086 82.68 176 172 35.2
C 14 238 26126 632.63 170 170 41.0
C 3 233 8307 198.32 170 170 41.0
C 5 218 2227 50.14 170 170 41.0
D 2 152 7068 158.67 173 168 43.5
D 2 234 4067 89.66 173 168 43.5
D 3 238 2824 61.08 173 168 43.5

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