ASTROSAT CZTI

Data Quality Report

Orbit 15111

Creation date: 2024-06-27T17:03:49.646804
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_130T03_9000002224_15111cztM0_level2.evt modeM0/AS1A04_130T03_9000002224_15111cztM0_level2_quad_clean.evt
Size (bytes)506,479,68097,824,960
Size483.0 MB 93.3 MB
Events in quadrant A3,212,799632,436
Events in quadrant B4,932,371637,143
Events in quadrant C3,581,072641,897
Events in quadrant D3,184,479610,703

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133374
B0188922
C0142782
D0132682

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6311420.665505%
B63114647.352242%
C6311430.681350%
D6311240.380288%

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 7653 6314 1 1 0.01% 0.02%
B 7653 6314 314 314 4.10% 4.97%
C 7653 6314 5 5 0.07% 0.08%
D 7653 6314 8 8 0.10% 0.13%

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 9 143 13537 76.94 829 812 165.4
A 12 189 9630 53.32 829 812 165.4
A 0 226 7454 40.16 829 812 165.4
B 10 245 1259173 8431.45 805 786 149.2
B 3 64 442410 2958.97 805 786 149.2
B 0 229 76238 505.54 805 786 149.2
C 3 233 281198 1480.88 824 832 189.3
C 4 254 85756 448.57 824 832 189.3
C 13 61 5755 26.0 824 832 189.3
D 2 152 32969 161.65 819 797 199.0
D 13 249 28943 141.42 819 797 199.0
D 9 251 23630 114.73 819 797 199.0

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