ASTROSAT CZTI

Data Quality Report

Orbit 34119

Creation date: 2024-06-27T20:56:43.164015
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/AS1A11_097T08_9000004874_34119cztM0_level2.evt modeM0/AS1A11_097T08_9000004874_34119cztM0_level2_quad_clean.evt
Size (bytes)454,207,68064,788,480
Size433.2 MB 61.8 MB
Events in quadrant A2,474,543409,411
Events in quadrant B3,091,630417,411
Events in quadrant C3,712,228394,828
Events in quadrant D4,131,387382,753

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0103223
B0121932
C0142552
D0156412

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A509780.156955%
B50971563.060624%
C50971573.080243%
D50974208.240141%

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 7249 5098 0 0 0.00% 0.00%
B 7249 5098 94 94 1.30% 1.84%
C 7249 5098 157 157 2.17% 3.08%
D 7249 5098 366 366 5.05% 7.18%

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 10 83 18980 144.29 633 621 127.2
A 13 6 11615 86.41 633 621 127.2
A 13 254 8261 60.05 633 621 127.2
B 5 172 489198 4172.07 623 610 117.1
B 4 251 47446 399.93 623 610 117.1
B 0 190 25034 208.56 623 610 117.1
C 0 10 1114780 7998.3 601 606 139.3
C 15 214 224090 1604.32 601 606 139.3
C 14 67 13359 91.55 601 606 139.3
D 10 118 706993 4879.26 589 573 144.8
D 8 195 523307 3610.54 589 573 144.8
D 12 128 106153 729.24 589 573 144.8

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