ASTROSAT CZTI

Data Quality Report

Orbit 28281

Creation date: 2024-06-27T19:50:00.446291
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_102T06_9000004078_28281cztM0_level2.evt modeM0/AS1A10_102T06_9000004078_28281cztM0_level2_quad_clean.evt
Size (bytes)509,423,040100,946,880
Size485.8 MB 96.3 MB
Events in quadrant A3,055,694670,367
Events in quadrant B3,172,058684,591
Events in quadrant C3,246,973659,374
Events in quadrant D5,526,862604,166

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133390
B0136760
C0138590
D0208090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6280350.557325%
B6280450.716561%
C6280861.369427%
D628075912.085987%

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 7440 6280 0 0 0.00% 0.00%
B 7440 6281 4 4 0.05% 0.06%
C 7440 6280 0 0 0.00% 0.00%
D 7440 6280 634 634 8.52% 10.10%

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 12 96 19577 118.88 786 770 158.2
A 13 254 12049 71.29 786 770 158.2
A 3 137 7360 41.66 786 770 158.2
B 0 230 26193 172.45 787 767 147.4
B 4 52 25460 167.48 787 767 147.4
B 4 200 24341 159.89 787 767 147.4
C 3 233 129111 721.25 768 773 177.9
C 14 238 125049 698.42 768 773 177.9
C 13 61 5278 25.32 768 773 177.9
D 1 52 1967714 11330.66 731 712 173.6
D 12 250 337974 1942.75 731 712 173.6
D 13 104 243826 1400.43 731 712 173.6

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