ASTROSAT CZTI

Data Quality Report

Orbit 27222

Creation date: 2024-06-27T19:37:52.694117
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/AS1T03_243T01_9000003918_27222cztM0_level2.evt modeM0/AS1T03_243T01_9000003918_27222cztM0_level2_quad_clean.evt
Size (bytes)532,676,16081,722,880
Size508.0 MB 77.9 MB
Events in quadrant A3,370,079511,983
Events in quadrant B3,371,543521,460
Events in quadrant C3,331,307495,493
Events in quadrant D5,603,193477,196

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141370
B0140910
C0140390
D0210890

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6728711.055291%
B6728761.129608%
C67281021.516052%
D67286669.898930%

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 7698 6729 0 0 0.00% 0.00%
B 7698 6729 0 0 0.00% 0.00%
C 7698 6729 0 0 0.00% 0.00%
D 7698 6729 463 463 6.01% 6.88%

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 50783 290.39 856 838 172.0
A 8 192 11856 64.06 856 838 172.0
A 13 254 9574 50.79 856 838 172.0
B 12 111 20286 119.27 851 831 163.1
B 11 111 18353 107.42 851 831 163.1
B 0 230 17435 101.79 851 831 163.1
C 14 238 131716 686.2 816 820 190.8
C 15 208 15698 78.0 816 820 190.8
C 13 61 5396 23.99 816 820 190.8
D 1 52 2507596 12884.79 786 766 194.6
D 2 250 42233 213.14 786 766 194.6
D 5 222 29618 148.3 786 766 194.6

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