ASTROSAT CZTI

Data Quality Report

Orbit 43933

Creation date: 2024-06-27T22:57:22.171670
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/AS1A13_024T02_9000005918_43933cztM0_level2.fits modeM0/AS1A13_024T02_9000005918_43933cztM0_level2_quad_clean.evt
Size (bytes)588,784,320101,041,920
Size561.5 MB 96.4 MB
Events in quadrant A5,624,988698,704
Events in quadrant B6,778,523559,360
Events in quadrant C3,308,652719,998
Events in quadrant D5,559,769611,454

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0213152
B0248632
C0146482
D0212933

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67363114.616983%
B6736175726.083729%
C6736410.608670%
D67356529.680772%

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 7686 6737 186 186 2.42% 2.76%
B 7686 6737 1392 1392 18.11% 20.66%
C 7686 6737 22 22 0.29% 0.33%
D 7685 6736 502 502 6.53% 7.45%

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 15 222 1408198 9452.66 723 709 148.9
A 10 83 1192739 8005.64 723 709 148.9
A 15 223 85747 571.11 723 709 148.9
B 5 235 3799467 31883.96 606 588 119.1
B 0 213 114183 953.4 606 588 119.1
B 0 200 99793 832.63 606 588 119.1
C 14 254 276182 1597.79 726 729 172.4
C 3 233 100137 576.62 726 729 172.4
C 1 241 35343 200.78 726 729 172.4
D 12 17 832837 4646.3 701 678 179.1
D 1 52 317167 1767.09 701 678 179.1
D 14 226 289066 1610.19 701 678 179.1

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