ASTROSAT CZTI

Data Quality Report

Orbit 01073

Creation date: 2024-06-27T14:07:01.988103
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/AS1P01_998T02_9000000190_01073cztM0_level2.evt modeM0/AS1P01_998T02_9000000190_01073cztM0_level2_quad_clean.evt
Size (bytes)646,470,72066,144,960
Size616.5 MB 63.1 MB
Events in quadrant A4,310,607453,486
Events in quadrant B4,705,010449,405
Events in quadrant C4,543,938438,976
Events in quadrant D5,747,741374,721

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157027
B01687220
C01638312
D02013530

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A405410.024667%
B4051260.641817%
C405300.000000%
D405372717.937330%

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 4056 4056 53 53 1.31% 1.31%
B 4056 4056 104 104 2.56% 2.56%
C 4056 4055 32 32 0.79% 0.79%
D 4056 4054 761 761 18.76% 18.77%

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 0 253 52436 195.5 1107 1112 262.5
A 15 233 7357 23.79 1107 1112 262.5
A 11 79 4294 12.12 1107 1112 262.5
B 5 191 167953 612.95 1174 1178 272.1
B 5 249 21628 75.16 1174 1178 272.1
B 15 22 13523 45.37 1174 1178 272.1
C 15 241 209821 690.64 1092 1132 302.2
C 3 79 29760 94.74 1092 1132 302.2
C 3 111 19837 61.9 1092 1132 302.2
D 13 73 44772 169.86 916 949 258.0
D 2 152 36553 138.01 916 949 258.0
D 2 25 32785 123.4 916 949 258.0

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