ASTROSAT CZTI

Data Quality Report

Orbit 30200

Creation date: 2024-06-27T20:12:09.517392
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_071T09_9000004344_30200cztM0_level2.evt modeM0/AS1A10_071T09_9000004344_30200cztM0_level2_quad_clean.evt
Size (bytes)793,177,92084,130,560
Size756.4 MB 80.2 MB
Events in quadrant A3,942,755515,672
Events in quadrant B6,152,725516,295
Events in quadrant C8,571,484472,784
Events in quadrant D4,812,498484,776

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168032
B0244082
C0311882
D0189053

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80283824.758346%
B80295426.750529%
C8029125115.581019%
D80283454.297459%

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 8043 8029 0 0 0.00% 0.00%
B 8044 8030 0 0 0.00% 0.00%
C 8044 8030 343 343 4.26% 4.27%
D 8043 8029 75 75 0.93% 0.93%

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 13 254 13463 59.65 1020 993 209.0
A 3 137 11177 48.72 1020 993 209.0
A 0 226 8512 35.97 1020 993 209.0
B 6 159 2220714 11254.67 999 971 197.2
B 12 111 25185 122.77 999 971 197.2
B 11 111 23610 114.79 999 971 197.2
C 3 233 4695109 21082.44 945 946 222.7
C 14 238 148588 663.09 945 946 222.7
C 2 114 18926 80.75 945 946 222.7
D 7 223 414877 1729.75 984 958 239.3
D 8 195 305818 1274.0 984 958 239.3
D 13 104 205043 852.86 984 958 239.3

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