ASTROSAT CZTI

Data Quality Report

Orbit 14328

Creation date: 2024-06-27T16:53:34.352061
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/AS1G08_078T01_9000002110_14328cztM0_level2.evt modeM0/AS1G08_078T01_9000002110_14328cztM0_level2_quad_clean.evt
Size (bytes)847,416,960157,458,240
Size808.2 MB 150.2 MB
Events in quadrant A5,810,4151,017,832
Events in quadrant B5,696,3611,028,052
Events in quadrant C5,972,845989,048
Events in quadrant D7,425,365957,405

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02312
B02328
C02324
D02322

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A024650489
B024317513
C024486492
D030479936

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0252
B0253
C0252
D0253

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A11244680.604767%
B11237830.738631%
C11235470.418336%
D111882602.323918%

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 13896 11322 6 6 0.04% 0.05%
B 13896 11316 4 4 0.03% 0.04%
C 13896 11326 0 0 0.00% 0.00%
D 13896 11272 205 205 1.48% 1.82%

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 12 189 173641 610.63 1419 1397 282.1
A 8 15 105846 370.28 1419 1397 282.1
A 4 2 76010 264.51 1419 1397 282.1
B 4 173 46131 169.37 1409 1377 264.2
B 5 32 39115 142.82 1409 1377 264.2
B 0 189 36926 134.54 1409 1377 264.2
C 3 233 673890 2150.69 1356 1368 312.7
C 13 61 9617 26.38 1356 1368 312.7
C 1 0 5680 13.79 1356 1368 312.7
D 5 222 1063468 3356.45 1341 1312 316.5
D 2 120 436683 1375.79 1341 1312 316.5
D 12 110 422527 1331.06 1341 1312 316.5

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