ASTROSAT CZTI

Data Quality Report

Orbit 14528

Creation date: 2024-06-27T16:56:28.330839
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_049T01_9000002142_14528cztM0_level2.evt modeM0/AS1T02_049T01_9000002142_14528cztM0_level2_quad_clean.evt
Size (bytes)591,065,280119,738,880
Size563.7 MB 114.2 MB
Events in quadrant A6,213,464778,263
Events in quadrant B3,303,359810,527
Events in quadrant C3,513,990812,775
Events in quadrant D4,431,051772,515

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230082
B0141891
C0147741
D0176931

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64833375.198211%
B6483480.740398%
C6483380.586148%
D64833224.966836%

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 7604 6485 117 117 1.54% 1.80%
B 7604 6485 8 8 0.11% 0.12%
C 7604 6485 2 2 0.03% 0.03%
D 7604 6485 253 253 3.33% 3.90%

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 8 15 3166411 20556.95 771 755 154.0
A 12 189 43074 274.81 771 755 154.0
A 15 69 22014 138.05 771 755 154.0
B 0 182 53920 366.29 785 767 145.1
B 0 189 37233 251.3 785 767 145.1
B 4 142 28730 192.7 785 767 145.1
C 3 233 489648 2770.45 772 776 176.5
C 0 207 11535 60.97 772 776 176.5
C 13 61 5548 27.04 772 776 176.5
D 12 110 1099137 5551.06 759 741 197.9
D 12 233 108221 543.18 759 741 197.9
D 2 136 101471 509.07 759 741 197.9

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