ASTROSAT CZTI

Data Quality Report

Orbit 31034

Creation date: 2024-06-27T20:22:33.080111
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_071T56_9000004484_31034cztM0_level2.evt modeM0/AS1A10_071T56_9000004484_31034cztM0_level2_quad_clean.evt
Size (bytes)628,312,32094,438,080
Size599.2 MB 90.1 MB
Events in quadrant A3,313,595637,346
Events in quadrant B5,385,451636,781
Events in quadrant C3,452,285601,523
Events in quadrant D6,469,473562,046

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136532
B0199573
C0139892
D0236182

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6040600.993377%
B60392303.808578%
C60391983.278689%
D60392754.553734%

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 7420 6040 0 0 0.00% 0.00%
B 7419 6039 58 58 0.78% 0.96%
C 7419 6039 41 41 0.55% 0.68%
D 7419 6039 216 216 2.91% 3.58%

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 11 47 105359 632.87 831 816 165.2
A 13 254 12133 68.51 831 816 165.2
A 3 137 7760 42.04 831 816 165.2
B 6 159 1760661 11485.31 824 805 153.2
B 5 172 184251 1197.22 824 805 153.2
B 0 155 68241 440.11 824 805 153.2
C 0 10 179184 974.62 788 795 183.0
C 14 238 130324 707.68 788 795 183.0
C 3 233 26024 137.84 788 795 183.0
D 13 174 2568305 13778.12 784 766 186.3
D 8 195 747082 4004.94 784 766 186.3
D 1 52 79603 423.06 784 766 186.3

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