ASTROSAT CZTI

Data Quality Report

Orbit 22408

Creation date: 2024-06-27T18:40:36.228189
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/AS1T03_156T01_9000003312_22408cztM0_level2.evt modeM0/AS1T03_156T01_9000003312_22408cztM0_level2_quad_clean.evt
Size (bytes)424,771,20092,779,200
Size405.1 MB 88.5 MB
Events in quadrant A3,032,818600,298
Events in quadrant B3,164,999620,091
Events in quadrant C3,114,993585,673
Events in quadrant D3,125,001566,015

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129692
B0132752
C0131162
D0134432

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6268170.271219%
B6268380.606254%
C6268560.893427%
D6268180.287173%

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 7588 6269 0 0 0.00% 0.00%
B 7588 6269 3 3 0.04% 0.05%
C 7588 6269 0 0 0.00% 0.00%
D 7588 6269 7 7 0.09% 0.11%

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 13 254 9992 58.81 784 768 156.8
A 3 1 9816 57.69 784 768 156.8
A 0 226 6733 38.03 784 768 156.8
B 0 190 38092 254.01 792 773 146.9
B 3 64 24339 160.4 792 773 146.9
B 12 111 17406 113.21 792 773 146.9
C 14 238 121137 685.09 762 768 175.7
C 10 22 12508 66.82 762 768 175.7
C 0 10 5458 26.69 762 768 175.7
D 1 52 92997 507.62 759 739 181.7
D 12 227 65628 357.03 759 739 181.7
D 7 223 33687 181.29 759 739 181.7

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