ASTROSAT CZTI

Data Quality Report

Orbit 30453

Creation date: 2024-06-27T20:15:25.831044
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_121T02_9000004378_30453cztM0_level2.evt modeM0/AS1A10_121T02_9000004378_30453cztM0_level2_quad_clean.evt
Size (bytes)648,236,16070,344,000
Size618.2 MB 67.1 MB
Events in quadrant A3,456,682436,262
Events in quadrant B5,474,091430,900
Events in quadrant C3,470,596420,220
Events in quadrant D6,792,902390,447

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143261
B0205121
C0142141
D0245451

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64751061.637066%
B64751482.285714%
C64761392.146387%
D647689513.820259%

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 7600 6476 7 7 0.09% 0.11%
B 7600 6476 5 5 0.07% 0.08%
C 7601 6477 1 1 0.01% 0.02%
D 7601 6477 853 853 11.22% 13.17%

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 42420 240.04 881 868 173.1
A 8 192 13357 72.15 881 868 173.1
A 13 254 12004 64.33 881 868 173.1
B 6 159 1785222 11016.48 860 841 162.0
B 0 229 289674 1783.21 860 841 162.0
B 12 111 19175 113.19 860 841 162.0
C 14 238 140422 728.48 833 841 191.6
C 3 233 28728 145.54 833 841 191.6
C 2 114 15159 74.72 833 841 191.6
D 13 104 2246293 10985.97 821 804 204.4
D 12 227 1083702 5298.04 821 804 204.4
D 8 195 134931 656.21 821 804 204.4

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