ASTROSAT CZTI

Data Quality Report

Orbit 28297

Creation date: 2024-06-27T19:50:11.232198
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/AS1A10_102T10_9000004080_28297cztM0_level2.evt modeM0/AS1A10_102T10_9000004080_28297cztM0_level2_quad_clean.evt
Size (bytes)539,098,560118,578,240
Size514.1 MB 113.1 MB
Events in quadrant A3,224,119798,266
Events in quadrant B4,376,046809,625
Events in quadrant C3,362,454799,663
Events in quadrant D4,938,474745,594

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136710
B0170740
C0141260
D0189570

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6277500.796559%
B62773705.894536%
C62771051.672774%
D62762724.333971%

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 7587 6278 6 6 0.08% 0.10%
B 7587 6277 284 284 3.74% 4.52%
C 7587 6278 0 0 0.00% 0.00%
D 7586 6276 205 205 2.70% 3.27%

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 8 192 14999 87.04 829 815 163.0
A 13 254 11537 65.79 829 815 163.0
A 15 174 9450 52.99 829 815 163.0
B 10 245 1084817 7186.25 825 808 150.8
B 4 200 24052 154.09 825 808 150.8
B 12 111 17762 112.39 825 808 150.8
C 14 238 134516 706.85 820 828 189.1
C 3 233 33336 171.88 820 828 189.1
C 13 61 5642 25.45 820 828 189.1
D 1 52 1059501 5622.02 800 781 188.3
D 8 195 643479 3412.86 800 781 188.3
D 2 250 69789 366.45 800 781 188.3

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