ASTROSAT CZTI

Data Quality Report

Orbit 04109

Creation date: 2024-06-27T14:37:32.568010
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/AS1G05_191T01_9000000524_04109cztM0_level2.evt modeM0/AS1G05_191T01_9000000524_04109cztM0_level2_quad_clean.evt
Size (bytes)497,638,08089,928,000
Size474.6 MB 85.8 MB
Events in quadrant A3,459,386581,662
Events in quadrant B3,579,888582,899
Events in quadrant C4,304,684567,477
Events in quadrant D3,301,135553,257

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143033
B0147042
C0169132
D0140252

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62801101.751592%
B62801862.961783%
C62803886.178344%
D62801282.038217%

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 7515 6280 33 33 0.44% 0.53%
B 7515 6280 77 77 1.02% 1.23%
C 7515 6280 198 198 2.63% 3.15%
D 7515 6280 48 48 0.64% 0.76%

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 0 199 263289 1608.23 807 794 163.2
A 14 111 38330 229.97 807 794 163.2
A 0 226 31626 188.9 807 794 163.2
B 10 16 335312 2190.98 813 797 152.7
B 14 167 50739 327.11 813 797 152.7
B 15 204 31049 198.14 813 797 152.7
C 9 144 1250142 6948.08 777 786 179.8
C 9 160 10948 56.51 777 786 179.8
C 9 176 8084 40.59 777 786 179.8
D 10 172 80797 424.01 789 772 188.7
D 13 53 74629 391.33 789 772 188.7
D 12 233 37355 193.83 789 772 188.7

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