ASTROSAT CZTI

Data Quality Report

Orbit 42183

Creation date: 2024-06-27T22:37:50.541314
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/AS1A11_032T04_9000005766_42183cztM0_level2.fits modeM0/AS1A11_032T04_9000005766_42183cztM0_level2_quad_clean.evt
Size (bytes)317,211,84088,989,120
Size302.5 MB 84.9 MB
Events in quadrant A2,918,597603,275
Events in quadrant B2,916,394608,545
Events in quadrant C2,413,905590,552
Events in quadrant D3,095,012534,409

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118242
B0121222
C0103212
D0127872

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0290
C0290
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5108290.567737%
B51081803.523884%
C510730.058743%
D51071402.741335%

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 7081 5109 19 19 0.27% 0.37%
B 7081 5109 136 136 1.92% 2.66%
C 7080 5108 0 0 0.00% 0.00%
D 7080 5108 143 143 2.02% 2.80%

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 10 83 546251 4651.44 571 560 117.3
A 15 223 109847 931.56 571 560 117.3
A 13 248 51218 431.81 571 560 117.3
B 5 255 485315 4494.55 565 551 107.9
B 0 229 104873 967.23 565 551 107.9
B 3 112 66747 613.74 565 551 107.9
C 15 214 211738 1602.98 560 565 131.7
C 0 207 11694 84.48 560 565 131.7
C 12 249 5511 37.54 560 565 131.7
D 12 218 311211 2302.02 552 536 135.0
D 1 47 177361 1310.23 552 536 135.0
D 12 6 152175 1123.6 552 536 135.0

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