UC Observatories

Parent: UCLA

eScholarship stats: History by Item for March through June, 2026

Item	Title	Total requests	2026-06	2026-05	2026-04	2026-03
9j80t4m1	The 16th Data Release of the Sloan Digital Sky Surveys: First Release from the APOGEE-2 Southern Survey and Full Release of eBOSS Spectra	928	262	244	199	223
5cf394wh	Adaptive Optics for Extremely Large Telescopes 4 - Program Booklet	394	90	113	90	101
5qs0n1bc	Innovations and advances in instrumentation at the W. M. Keck Observatory, vol. III	383	89	120	105	69
2qw2m22g	The Seventeenth Data Release of the Sloan Digital Sky Surveys: Complete Release of MaNGA, MaStar, and APOGEE-2 Data	382	109	93	96	84
4058w3z1	Final Targeting Strategy for the Sloan Digital Sky Survey IV Apache Point Observatory Galactic Evolution Experiment 2 North Survey	311	105	107	61	38
2vj6w3gm	The use of CPU, GPU and FPGA in real-time control of adaptive optics systems	290	81	83	68	58
11f44236	THE DEEP2 GALAXY REDSHIFT SURVEY: DESIGN, OBSERVATIONS, DATA REDUCTION, AND REDSHIFTS**Based on observations taken at the W. M. Keck Observatory, which is operated jointly by the University of California and the California Institute of Technology, and on observations made with the NASA/ESO Hubble Space Telescope, obtained from the data archives at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555, and from the Canadian Astronomy Data Centre.	284	59	103	69	53
23w5v4vv	New Cophasing and AO strategies for an extremely large telescope dedicated to extremely high contrast: The Colossus Project	283	53	104	72	54
44b7j2bq	The Lick AGN Monitoring Project 2016: Velocity-resolved Hβ Lags in Luminous Seyfert Galaxies	283	28	55	53	147
7zs2q9fv	Inferring the intergalactic medium neutral fraction at z ∼ 6–8 with low-luminosity Lyman break galaxies	277	66	100	71	40
93x3m220	Non common path aberration correction with non linear WFSs	266	86	86	58	36
1pm0r30z	The Keck/DEIMOS Stellar Archive. I. Uniform Velocities and Metallicities for 78 Milky Way Dwarf Galaxies and Globular Clusters	265	25	77	56	107
015808kc	Measuring Segment Piston with a Dispersed Fringe Sensor on the Giant Magellan Telescope	263	40	98	46	79
4d77d3hk	The HETDEX Instrumentation: Hobby–Eberly Telescope Wide-field Upgrade and VIRUS	263	66	65	70	62
9xx3208w	On-sky results of Raven, a MOAO science demonstrator at Subaru Telescope	262	60	91	59	52
9fp0m8s1	The Fifteenth Data Release of the Sloan Digital Sky Surveys: First Release of MaNGA-derived Quantities, Data Visualization Tools, and Stellar Library	258	64	85	55	54
1k41x51n	INO Pyramidal Wavefront Sensor Demonstrator: first closed-loop on-sky operation at Mont-Mégantic Telescope	253	63	79	57	54
77f6c5hq	SDSS-IV MaNGA: How the Stellar Populations of Passive Central Galaxies Depend on Stellar and Halo Mass	251	81	48	71	51
0gt3876k	SPHERE extreme AO system On-sky operation, final performance and future improvements	246	56	81	64	45
4gr3p2pf	Adaptive Optics Program at TMT	240	60	74	54	52
1j62j00j	PypeIt: The Python Spectroscopic Data Reduction Pipeline	228	33	81	56	58
7t52h1r1	Miniaturized Shack-Hartmann Wavefront-Sensors for ELTs	227	61	62	66	38
7m06d2jp	GTC Follow-up Observations of Very Metal-poor Star Candidates from DESI	226	45	73	66	42
6r38q9vb	Performance assessment for the linear control of adaptive optics systems: noise propagation and temporal errors	223	30	88	77	28
0479k8m1	Observations of the dynamic turbulence above La Palma using Stereo-SCIDAR	220	34	79	61	46
1367c5xw	Anti-aliasing wave-front reconstruction with Shack-Hartmann sensors	220	46	73	53	48
20x7p7qb	Recent Improvements to the Keck II Laser Guide Star Facility	217	44	68	61	44
16b4h26g	Use of Laser Guide Star with Pyramid Wavefront Sensor	216	34	87	51	44
217686nz	Design and Development Status of MKID Integral Field Spectrographs for High Contrast Imaging	216	48	65	55	48
2cr972kt	Aligning the LINC-NIRVANA Natural Guide Stars MCAO system	216	38	77	51	50
8646z73c	Improved Cosmological Constraints from New, Old, and Combined Supernova Data Sets	213	59	71	48	35
5616n854	The Draco Dwarf Spheroidal Galaxy in the First Year of Dark Energy Spectroscopic Instrument Data	211	24	85	49	53
8w80k9sp	An Integrated MASS/DIMM Monitor Based on a Low-Noise CCD Detector	211	36	79	55	41
3cq132qm	Pyramid versus Shack-Hartmann: Trade Study Results for the NFIRAOS NGS WFS	209	45	65	51	48
5n84b2z0	Multi-conjugate Adaptive Optics at Big Bear Solar Observatory	208	61	54	53	40
7h46n1q2	Lick Observatory Supernova Search follow-up program: photometry data release of 93 Type Ia supernovae	208	68	54	47	39
38s3v07s	The Hobby–Eberly Telescope Dark Energy Experiment (HETDEX) Survey Design, Reductions, and Detections* * Based on observations obtained with the Hobby–Eberly Telescope, which is a joint project of the University of Texas at Austin, the Pennsylvania State University, Ludwig-Maximilians-Universität München, and Georg-August-Universität Göttingen.	205	49	53	61	42
2mq7f7k6	OCAM2S: an integral shutter ultrafast and low noise wavefront sensor camera for laser guide stars adaptive optics systems	204	37	72	60	35
80j280rv	Filtering the interaction matrix in an adaptive optics system	204	51	76	45	32
3gp3k4kg	Retrieving tip-tilt information from Tomographic Laser Guide Star Adaptive Optics Systems	203	36	71	50	46
4s5364qp	A Fresnel propagation analysis for SPEED (Segmented Pupil Experiment for Exoplanet Detection)	199	41	55	66	37
5t0211tn	SCExAO: the first high contrast exoplanet imager on an ELT?	199	40	57	49	53
9q7259nn	Non Boltzmann Modeling of Sodium Guidestar Returns and Implications for Guidestar Linewidth	199	39	77	48	35
0v44n629	Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies, and the Distant Universe	198	41	65	45	47
6809n74d	Durham AO Real-time Controller (DARC) running on Graphics Processing Units (GPUs)	198	37	49	58	54
5vv5p369	Self-Coherent Camera as a focal plane phasing sensor - Overview and early comparison with the Zernike Phase Contrast Sensor	195	38	53	66	38
56v9924z	Experimental implementation of a Pyramid WFS: Towards the	194	40	69	47	38
5q66922d	E-ELT M4 Unit updated design and prototype results	194	30	57	49	58
62p140z1	Measuring Segment Piston with a Non-Redundant Pupil Mask on the Giant Magellan Telescope	193	42	55	52	44
81f1f8pt	Prototyping the GMT phasing camera with the Magellan AO system	193	49	52	46	46

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