ASTROSAT CZTI

Data Quality Report

Orbit 43283

Creation date: 2024-06-27T22:50:06.836082
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/AS1A06_006T01_9000005860_43283cztM0_level2.fits modeM0/AS1A06_006T01_9000005860_43283cztM0_level2_quad_clean.evt
Size (bytes)809,864,640218,534,400
Size772.3 MB 208.4 MB
Events in quadrant A8,152,5941,413,368
Events in quadrant B6,056,3931,528,661
Events in quadrant C7,645,9861,410,390
Events in quadrant D7,060,5041,317,812

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02800
B02800
C02800
D02800

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0470
B0470
C0470
D0470

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0329373
B0277953
C0314513
D0312213

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A137064143.020575%
B13706180.131329%
C137063962.889246%
D137061631.189260%

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 18365 13709 332 332 1.81% 2.42%
B 18365 13709 7 7 0.04% 0.05%
C 18365 13709 368 368 2.00% 2.68%
D 18365 13709 169 169 0.92% 1.23%

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 10 83 1185104 3957.69 1459 1430 299.1
A 15 237 1005951 3358.68 1459 1430 299.1
A 13 248 312587 1040.37 1459 1430 299.1
B 0 189 117697 405.66 1479 1437 286.6
B 5 172 63464 216.43 1479 1437 286.6
B 12 111 37291 125.1 1479 1437 286.6
C 14 254 1386611 4083.33 1442 1450 339.2
C 15 214 556432 1636.04 1442 1450 339.2
C 3 233 29468 82.59 1442 1450 339.2
D 1 52 559720 1579.4 1446 1408 353.5
D 12 6 482107 1359.85 1446 1408 353.5
D 2 249 244901 688.82 1446 1408 353.5

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