ASTROSAT CZTI

Data Quality Report

Orbit 12073

Creation date: 2024-06-27T16:22:00.779740
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/AS1A04_145T02_9000001790_12073cztM0_level2.evt modeM0/AS1A04_145T02_9000001790_12073cztM0_level2_quad_clean.evt
Size (bytes)464,973,120101,799,360
Size443.4 MB 97.1 MB
Events in quadrant A3,074,396675,452
Events in quadrant B3,761,132666,614
Events in quadrant C2,829,535675,000
Events in quadrant D4,010,368647,938

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130281
B0151281
C0122931
D0159171

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5989711.185507%
B59892504.174320%
C5989540.901653%
D59891893.155786%

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 7260 5991 6 6 0.08% 0.10%
B 7260 5990 147 147 2.02% 2.45%
C 7260 5991 2 2 0.03% 0.03%
D 7260 5991 95 95 1.31% 1.59%

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 1 162 67849 457.88 729 714 146.6
A 13 248 42597 285.65 729 714 146.6
A 1 178 28837 191.81 729 714 146.6
B 4 239 723418 5365.82 723 705 134.7
B 15 204 155848 1151.87 723 705 134.7
B 3 209 23633 170.23 723 705 134.7
C 12 4 7832 43.1 721 726 164.9
C 0 207 6655 35.96 721 726 164.9
C 13 61 5238 27.37 721 726 164.9
D 1 52 785593 4598.06 715 695 170.7
D 8 195 146083 851.71 715 695 170.7
D 7 71 104110 605.82 715 695 170.7

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