ASTROSAT CZTI

Data Quality Report

Orbit 26214

Creation date: 2024-06-27T19:26:11.450018
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/AS1C05_019T04_9000003788_26214cztM0_level2.evt modeM0/AS1C05_019T04_9000003788_26214cztM0_level2_quad_clean.evt
Size (bytes)463,775,040126,141,120
Size442.3 MB 120.3 MB
Events in quadrant A3,253,703868,386
Events in quadrant B3,006,443896,012
Events in quadrant C2,984,232838,604
Events in quadrant D4,403,413808,254

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132030
B0123600
C0124260
D0168260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5852771.315789%
B5853330.563813%
C5853450.768836%
D58533676.270289%

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 7257 5853 48 48 0.66% 0.82%
B 7258 5854 0 0 0.00% 0.00%
C 7258 5854 0 0 0.00% 0.00%
D 7258 5854 355 355 4.89% 6.06%

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 13 363966 2445.22 749 736 148.5
A 13 254 9565 59.44 749 736 148.5
A 0 226 6528 38.99 749 736 148.5
B 0 190 58811 419.43 747 730 138.5
B 5 172 17283 119.54 747 730 138.5
B 12 111 15964 110.01 747 730 138.5
C 14 238 117629 717.65 708 712 162.9
C 0 239 69446 421.9 708 712 162.9
C 3 233 33304 200.05 708 712 162.9
D 1 52 1605205 9631.23 703 686 166.6
D 13 168 102229 609.52 703 686 166.6
D 12 233 28684 168.06 703 686 166.6

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