ASTROSAT CZTI

Data Quality Report

Orbit 16153

Creation date: 2024-06-27T17:18:42.757876
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/AS1T02_109T01_9000002386_16153cztM0_level2.evt modeM0/AS1T02_109T01_9000002386_16153cztM0_level2_quad_clean.evt
Size (bytes)532,958,40072,504,000
Size508.3 MB 69.1 MB
Events in quadrant A3,690,262444,775
Events in quadrant B4,196,971448,170
Events in quadrant C3,843,967428,216
Events in quadrant D3,968,803420,647

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150923
B0165612
C0154222
D0157392

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6502771.184251%
B65022213.398954%
C65021051.614888%
D65031892.906351%

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 7813 6504 3 3 0.04% 0.05%
B 7813 6504 111 111 1.42% 1.71%
C 7813 6504 0 0 0.00% 0.00%
D 7814 6505 132 132 1.69% 2.03%

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 0 253 153846 851.52 898 880 179.6
A 15 174 57000 312.4 898 880 179.6
A 8 247 26941 145.07 898 880 179.6
B 5 65 500110 3041.92 877 862 164.1
B 0 229 74310 447.52 877 862 164.1
B 4 173 62484 375.46 877 862 164.1
C 3 233 392939 2022.01 846 853 193.9
C 14 238 131536 673.94 846 853 193.9
C 0 207 16726 81.86 846 853 193.9
D 1 52 583147 2793.27 863 839 208.5
D 5 222 99957 475.46 863 839 208.5
D 2 234 25605 118.8 863 839 208.5

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