ASTROSAT CZTI

Data Quality Report

Orbit 32931

Creation date: 2024-06-27T20:43:36.245018
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/AS1C07_005T01_9000004748_32931cztM0_level2.evt modeM0/AS1C07_005T01_9000004748_32931cztM0_level2_quad_clean.evt
Size (bytes)445,368,960103,916,160
Size424.7 MB 99.1 MB
Events in quadrant A2,401,350714,273
Events in quadrant B3,822,773715,576
Events in quadrant C2,493,060718,265
Events in quadrant D4,439,000655,714

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100233
B0146702
C0103222
D0167642

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4893100.204374%
B48932956.029021%
C4893210.429185%
D48931432.922542%

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 6986 4894 0 0 0.00% 0.00%
B 6986 4894 180 180 2.58% 3.68%
C 6986 4894 12 12 0.17% 0.25%
D 6986 4894 119 119 1.70% 2.43%

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 0 159 51502 422.98 601 589 120.4
A 13 6 13773 109.53 601 589 120.4
A 0 191 12871 102.04 601 589 120.4
B 0 219 562779 5087.71 597 583 110.5
B 5 172 561841 5079.22 597 583 110.5
B 0 189 94380 848.83 597 583 110.5
C 0 10 76832 566.81 594 598 134.5
C 14 67 25085 182.06 594 598 134.5
C 14 128 23371 169.32 594 598 134.5
D 8 195 1527820 10461.02 574 559 146.0
D 2 250 241226 1648.45 574 559 146.0
D 2 120 116229 792.28 574 559 146.0

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