ASTROSAT CZTI

Data Quality Report

Orbit 33572

Creation date: 2024-06-27T20:50:17.852746
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/AS1A11_060T01_9000004808_33572cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33572cztM0_level2_quad_clean.evt
Size (bytes)580,965,12065,465,280
Size554.1 MB 62.4 MB
Events in quadrant A2,840,483403,135
Events in quadrant B4,214,663386,230
Events in quadrant C5,310,762392,942
Events in quadrant D4,821,907379,631

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121812
B0163261
C0202971
D0183301

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0330

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6015150.249377%
B60154156.899418%
C60151602.660017%
D60151502.493766%

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 9332 6017 7 7 0.08% 0.12%
B 9332 6017 333 333 3.57% 5.53%
C 9332 6017 127 127 1.36% 2.11%
D 9332 6017 133 133 1.43% 2.21%

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 15 169 90800 629.07 709 695 143.2
A 13 254 10912 71.33 709 695 143.2
A 3 137 7091 44.65 709 695 143.2
B 5 172 1209750 9095.8 686 667 132.9
B 5 255 123088 920.96 686 667 132.9
B 4 170 55852 415.15 686 667 132.9
C 3 233 2122637 13365.98 683 688 158.8
C 15 214 258336 1622.9 683 688 158.8
C 0 10 202254 1269.65 683 688 158.8
D 8 195 1511994 9075.49 679 659 166.5
D 13 249 269725 1615.73 679 659 166.5
D 2 250 265567 1590.76 679 659 166.5

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