ASTROSAT CZTI

Data Quality Report

Orbit 01192

Creation date: 2024-06-27T14:08:55.168503
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/AS1G04_007T02_9000000220_01192cztM0_level2.evt modeM0/AS1G04_007T02_9000000220_01192cztM0_level2_quad_clean.evt
Size (bytes)1,189,238,400104,152,320
Size1.1 GB 99.3 MB
Events in quadrant A8,832,744688,217
Events in quadrant B8,993,456680,114
Events in quadrant C8,556,889655,965
Events in quadrant D9,169,443641,654

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0311903
B0317162
C0304432
D0322792

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7005320.456817%
B7005210.299786%
C700580.114204%
D70052563.654532%

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 7130 7005 449 449 6.30% 6.41%
B 7130 7005 416 416 5.83% 5.94%
C 7130 7007 242 242 3.39% 3.45%
D 7130 7007 726 726 10.18% 10.36%

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 4 32 382377 723.17 2180 2193 525.7
A 8 14 58142 106.42 2180 2193 525.7
A 15 223 7823 10.71 2180 2193 525.7
B 6 53 157543 288.56 2259 2268 538.1
B 5 191 41756 73.38 2259 2268 538.1
B 8 219 37976 66.36 2259 2268 538.1
C 15 241 406834 699.59 2062 2131 578.5
C 3 79 55305 91.92 2062 2131 578.5
C 3 111 39707 64.96 2062 2131 578.5
D 10 84 1131382 1809.4 2004 2069 624.1
D 12 22 267757 425.69 2004 2069 624.1
D 1 239 91766 143.71 2004 2069 624.1

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