ASTROSAT CZTI

Data Quality Report

Orbit 07343

Creation date: 2024-06-27T15:18:46.985953
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/AS1G06_157T02_9000001008_07343cztM0_level2.evt modeM0/AS1G06_157T02_9000001008_07343cztM0_level2_quad_clean.evt
Size (bytes)882,953,280168,465,600
Size842.0 MB 160.7 MB
Events in quadrant A5,959,1211,052,825
Events in quadrant B6,484,1211,077,513
Events in quadrant C5,864,8811,066,742
Events in quadrant D7,557,3421,012,621

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0279391041
B0291501067
C027782965
D0332331634

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02699
B02708
C02699
D02699

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A129113852.981953%
B129233782.925017%
C129251801.392650%
D128754663.619417%

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 13661 12996 2 2 0.01% 0.02%
B 13661 13008 9 9 0.07% 0.07%
C 13661 13011 7 7 0.05% 0.05%
D 13661 12966 146 146 1.07% 1.13%

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 15 234 114539 364.33 1512 1475 310.3
A 15 239 20511 61.34 1512 1475 310.3
A 0 226 14276 41.25 1512 1475 310.3
B 11 51 154627 521.14 1523 1483 293.9
B 0 214 130211 438.05 1523 1483 293.9
B 4 81 125640 422.5 1523 1483 293.9
C 9 68 98794 283.86 1471 1476 342.8
C 10 22 18315 49.12 1471 1476 342.8
C 13 61 11547 29.38 1471 1476 342.8
D 2 216 1278804 3507.42 1458 1406 364.2
D 12 233 278651 761.25 1458 1406 364.2
D 8 195 183282 499.39 1458 1406 364.2

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