ASTROSAT CZTI

Data Quality Report

Orbit 04553

Creation date: 2024-06-27T14:43:43.069088
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_233T10_9000000570_04553cztM0_level2.evt modeM0/AS1G05_233T10_9000000570_04553cztM0_level2_quad_clean.evt
Size (bytes)14,319,3603,741,120
Size13.7 MB 3.6 MB
Events in quadrant A128,24221,818
Events in quadrant B119,13325,943
Events in quadrant C117,73525,899
Events in quadrant D43,4909,040

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B01911
C0110
D01911

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03301132443
B03155631036
C03481734305
D03772637543

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0305254
B0305254
C0305250
D0305254

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A28400.000000%
B26120.766284%
C25600.000000%
D9411.063830%

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 6915 568 0 0 0.00% 0.00%
B 6915 518 0 0 0.00% 0.00%
C 6914 509 0 0 0.00% 0.00%
D 6663 183 0 0 0.00% 0.00%

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 14 1280 143.02 32 31 8.7
A 7 16 520 55.99 32 31 8.7
A 8 15 351 36.64 32 31 8.7
B 4 80 1436 179.36 29 28 7.9
B 0 183 1014 125.6 29 28 7.9
B 4 48 754 92.48 29 28 7.9
C 14 48 4006 470.83 28 28 8.4
C 8 128 379 41.54 28 28 8.4
C 13 61 239 24.97 28 28 8.4
D 13 25 1436 346.3 10 9 4.1
D 1 20 1190 286.6 10 9 4.1
D 2 136 592 141.48 10 9 4.1

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