ASTROSAT CZTI

Data Quality Report

Orbit 06595

Creation date: 2024-06-27T15:09:11.272284
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_028T01_9000000890_06595cztM0_level2.evt modeM0/AS1G06_028T01_9000000890_06595cztM0_level2_quad_clean.evt
Size (bytes)949,060,800195,007,680
Size905.1 MB 186.0 MB
Events in quadrant A6,440,2101,261,623
Events in quadrant B6,952,5121,275,513
Events in quadrant C6,692,8581,249,984
Events in quadrant D7,728,0741,171,703

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280173
B0293572
C0290432
D0323032

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02820
B02820
C02820
D02820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A13715440.320817%
B137151330.969741%
C13715670.488516%
D137154143.018593%

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 16190 13718 0 0 0.00% 0.00%
B 16190 13718 70 70 0.43% 0.51%
C 16190 13718 28 28 0.17% 0.20%
D 16190 13718 327 327 2.02% 2.38%

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 8 15 45363 129.95 1651 1620 336.6
A 13 14 22965 63.41 1651 1620 336.6
A 3 1 19992 54.58 1651 1620 336.6
B 3 220 381534 1205.97 1655 1620 315.0
B 4 81 85248 265.46 1655 1620 315.0
B 4 48 34282 103.68 1655 1620 315.0
C 9 16 400029 1070.84 1604 1618 372.1
C 9 54 34146 87.43 1604 1618 372.1
C 13 61 12422 29.04 1604 1618 372.1
D 2 33 1021393 2636.79 1591 1551 386.8
D 8 195 299982 771.59 1591 1551 386.8
D 2 63 121711 310.67 1591 1551 386.8

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