ASTROSAT CZTI

Data Quality Report

Orbit 28109

Creation date: 2024-06-27T19:48:08.686281
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/AS1A10_057T05_9000004060_28109cztM0_level2.evt modeM0/AS1A10_057T05_9000004060_28109cztM0_level2_quad_clean.evt
Size (bytes)550,350,720103,947,840
Size524.9 MB 99.1 MB
Events in quadrant A3,369,589700,213
Events in quadrant B3,497,590697,439
Events in quadrant C3,478,393657,034
Events in quadrant D5,884,037642,599

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136760
B0142430
C0140640
D0222100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6460320.495356%
B6460550.851393%
C6460771.191950%
D64595398.344945%

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 7730 6461 0 0 0.00% 0.00%
B 7730 6461 2 2 0.03% 0.03%
C 7730 6461 5 5 0.06% 0.08%
D 7729 6460 338 338 4.37% 5.23%

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 11184 59.85 872 856 172.6
A 0 226 7612 39.15 872 856 172.6
A 3 137 7555 38.82 872 856 172.6
B 15 32 126083 792.47 853 835 158.0
B 12 111 19034 115.15 853 835 158.0
B 11 111 17430 105.0 853 835 158.0
C 3 233 142294 750.27 818 826 188.6
C 14 238 135113 712.19 818 826 188.6
C 2 16 9546 46.25 818 826 188.6
D 7 223 1386578 7395.84 803 784 187.4
D 1 52 861528 4593.7 803 784 187.4
D 8 195 425033 2264.17 803 784 187.4

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