ASTROSAT CZTI

Data Quality Report

Orbit 00564

Creation date: 2024-06-27T13:59:59.834394
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/AS1P01_014T06_9000000078_00564cztM0_level2.evt modeM0/AS1P01_014T06_9000000078_00564cztM0_level2_quad_clean.evt
Size (bytes)418,008,96024,644,160
Size398.6 MB 23.5 MB
Events in quadrant A3,209,846144,698
Events in quadrant B3,396,636137,254
Events in quadrant C2,843,345141,769
Events in quadrant D3,038,440139,021

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113082
B0119201
C0102521
D0108291

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A254620.078555%
B2546200.785546%
C254620.078555%
D254620.078555%

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 4701 2547 64 64 1.36% 2.51%
B 4701 2547 111 111 2.36% 4.36%
C 4701 2547 19 19 0.40% 0.75%
D 4701 2547 42 42 0.89% 1.65%

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 0 238 23814 127.63 811 805 180.3
A 14 79 15436 81.16 811 805 180.3
A 15 171 10126 51.7 811 805 180.3
B 4 250 191682 1005.37 796 799 189.9
B 5 249 30732 157.65 796 799 189.9
B 5 46 30626 157.1 796 799 189.9
C 0 64 6570 29.18 718 745 199.7
C 15 241 6401 28.33 718 745 199.7
C 9 241 3610 14.35 718 745 199.7
D 1 4 120718 533.73 717 745 224.8
D 12 22 40793 178.16 717 745 224.8
D 13 221 25442 109.87 717 745 224.8

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