ASTROSAT CZTI

Data Quality Report

Orbit 59007

Creation date: 2026-08-24T11:20:08.617379
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/AS1A14_004T07_9000006598_59007cztM0_level2.fits modeM0/AS1A14_004T07_9000006598_59007cztM0_level2_quad_clean.evt
Size (bytes)724,104,00091,316,160
Size690.6 MB 87.1 MB
Events in quadrant A5,521,486620,694
Events in quadrant B3,276,091711,160
Events in quadrant C7,908,797543,005
Events in quadrant D9,599,015439,648

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0207752
B0140882
C0279524
D0329882

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64515278.169276%
B64511101.705162%
C6450120518.682171%
D6450200631.100775%

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 7646 6452 418 418 5.47% 6.48%
B 7646 6452 27 27 0.35% 0.42%
C 7645 6451 1140 1140 14.91% 17.67%
D 7644 6449 1940 1940 25.38% 30.08%

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 3 14 1437079 8128.58 717 700 176.7
A 14 238 731987 4138.41 717 700 176.7
A 10 251 286522 1617.49 717 700 176.7
B 5 185 103813 653.49 736 708 157.8
B 8 234 59782 374.42 736 708 157.8
B 4 236 40560 252.59 736 708 157.8
C 15 219 4878365 26102.55 677 672 186.9
C 12 252 154394 822.63 677 672 186.9
C 6 223 91086 483.84 677 672 186.9
D 12 110 6191028 34205.41 634 606 181.0
D 2 62 479193 2644.45 634 606 181.0
D 6 239 206804 1139.35 634 606 181.0

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

TCT plots

Parameter TCT0 TCT_healed
Tct