ASTROSAT CZTI

Data Quality Report

Orbit 09716

Creation date: 2024-06-27T15:49:43.211656
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/AS1A03_029T01_9000001384_09716cztM0_level2.evt modeM0/AS1A03_029T01_9000001384_09716cztM0_level2_quad_clean.evt
Size (bytes)464,040,00092,131,200
Size442.5 MB 87.9 MB
Events in quadrant A3,126,404586,460
Events in quadrant B3,269,686591,855
Events in quadrant C3,158,115586,529
Events in quadrant D4,042,203556,870

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013976161
B014199192
C014110211
D016767332

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01382
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67301081.604755%
B67211091.621782%
C6707560.834949%
D67072704.025645%

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 7128 6795 2 2 0.03% 0.03%
B 7128 6798 5 5 0.07% 0.07%
C 7128 6792 2 2 0.03% 0.03%
D 7128 6791 164 164 2.30% 2.41%

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 15 174 12076 68.87 807 789 163.9
A 0 226 7572 41.39 807 789 163.9
A 12 194 6726 36.22 807 789 163.9
B 0 214 44943 285.95 808 787 154.4
B 0 246 24595 154.18 808 787 154.4
B 0 229 17046 105.29 808 787 154.4
C 9 68 81984 447.5 781 789 181.4
C 14 234 18970 100.2 781 789 181.4
C 13 61 5898 28.16 781 789 181.4
D 1 52 961331 5101.29 769 752 188.3
D 12 233 105523 556.4 769 752 188.3
D 2 234 25482 131.33 769 752 188.3

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